Java code to print fibonacci numbers in reverse order
import java.util.*;
class Main{

public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int fib[] = new int[n];
if(n>=0)
fib[0] = 0;
if(n>=1)
fib[1] = 1;
for(int i=2;i<n;i++)
fib[i] = fib[i-1] + fib[i-2];
for(int i=n-1;i>=0;i--)
System.out.print(fib[i]+" ");
}
}

[8/26, 23:55] ENTREPRENEUR: package com.aman;

import java.util.Scanner;

public class gradetestcase {

public static void main(String[] args) {

Scanner x = new Scanner(System.in);
System.out.println("Enter The Number Of TestCases");
int B = x.nextInt();// testcases input
// using for loop condition
for (int A = 1; A <= B; A++) {
System.out.println("Enter Your Percentage");
int D = x.nextInt();
if ((D < 0) || (D > 100)) {// not less than 0 n max than 100
System.out.println("ERROR");
} else {
if ((D>33)&&(D<65)) {
System.out.println("Grade B");
} else if (D > 65) {
System.out.println("Grade A");
} else
System.out.println("Grade C");


}
}
}
[8/26, 23:55] ENTREPRENEUR: package com.aman;

import java.util.Scanner;

public class SwapNumbers {

public static void main(String[] args) {
// write your code here
//WAP TO SWAP TWO NUMBERS
System.out.println("Enter Number One");
Scanner x = new Scanner(System.in);
int A =x.nextInt();
System.out.println("Enter Number Two");
int B =x.nextInt();
A=A-B; //Subtracting the second variable from the first variable and assign that value to the first variable.
B=A+B; //Adding the value of both the variables and assign it to the second variable.
A=B-A; //Subtracting the value of the first variable from the second variable and assign that value to the first variable.
System.out.println("After Swapping numbers are: ");
System.out.println(A);
System.out.println(B);
}
}
[8/26, 23:56] ENTREPRENEUR: package com.aman;

import java.util.Scanner;

public class Palindrome_Swaping {
public static void main(String[] args) {
Scanner x = new Scanner(System.in);
System.out.println("Type numbers");
int a = x.nextInt();
int b;
for(; a>=0;a=a%10) {
b = a / 10;
System.out.println(a);
String [] Palindrome = ;
}
}
}
[8/26, 23:57] ENTREPRENEUR: package com.MYCODES;

import java.util.Scanner;

public class WeekDaysCalculate {

public static void main (String[]args){
// write your code here
Scanner scan = new Scanner(System.in);
System.out.println("Enter Your case number");
int weekdays = scan.nextInt();
/* System.out.println(input); */

switch (weekdays) {
case 1:
System.out.println("today is monday");
break;
case 3:
System.out.println("today is wednesday");
break;
case 4:
System.out.println("today is thursday");
break;
case 5:
System.out.println("today is friday");
break;
default:
System.out.println("today is sunday");
}
}
}
[9/2, 23:25] ENTREPRENEUR: package com.aman;

import java.util.Scanner;

class FullTimeEmp extends Employee
{

void calSal()
{
Scanner s=new Scanner(System.in);

System.out.println("Enter the no.of working days");
int days=s.nextInt();

System.out.println("Enter wage per day");
int wage=s.nextInt();

System.out.println("Salary For FullTimeEmp:"+(days*wage));
}
public static void main(String args[])
{
PartTimeEmp p=new PartTimeEmp();
p.calSal();

FullTimeEmp f=new FullTimeEmp();
f.calSal();
}
}
[9/2, 23:26] ENTREPRENEUR: package com.aman;

import java.util.Scanner;

class PartTimeEmp extends Employee
{
void calSal()

{
Scanner s=new Scanner(System.in);
System.out.println("Enter the no.of working hrs");
int hrs=s.nextInt();
System.out.println("Enter the wage per hr");
int wage=s.nextInt();
System.out.println("Salary For PartTime Employee::"+(hrs*wage));
}
}
[9/2, 23:26] ENTREPRENEUR: package com.aman;

abstract class Employee
{
abstract void calSal();

void display()
{
System.out.println("display method of Employee class");
}
}
[9/5, 15:14] ENTREPRENEUR: import java.util.Scanner;

class PrimeNumber {
public static void main(String[] args) {
System.out.println("Give number");
Scanner x = new Scanner(System.in);
int n = x.nextInt();
int count =0;
for(n=1 ;n<=30 ;n++){
for(int i =n ; i<=n; i++){
if(n%i==0){
count++;
}
}if(count==2){
System.out.println(n+" is a prime number ");}
else
System.out.println(n +" is not a prime number");
}
}
}
[9/5, 15:19] ENTREPRENEUR: import java.util.Scanner;
class Prime
{
public static void main(String arg[])
{
int i,count;
System.out.print("Enter n value : ");
Scanner sc=new Scanner(System.in);
int n=sc.nextInt();
System.out.println("Prime numbers between 1 to "+n+" are ");
for(int j=2;j<=n;j++)
{
count=0;
for(i=1;i<=j;i++)
{
if(j%i==0)
{
count++;
}
}
if(count==2)
System.out.print(j+" ");
}
}
}
[9/5, 15:27] ENTREPRENEUR: public class PerfectNumber
{
public static void main(String arg[])
{
int sum=0;
for(int i=0;i<10001;i++)
{
sum=0;
for(int j=1;j<i;j++)
{
if(i%j==0)
{
sum=sum+j;
}
}
if(sum==i && sum!=0)
System.out.print(i+"\t");
}
}
}
[9/6, 15:00] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(i==1i==7 j==1 || j==7){
System.out.print(" + ");
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/6, 23:01] ENTREPRENEUR: package com.Aman;
import java.util.Scanner;
public class Passsenger {
private String name;
private int Age;
private int SeatNo;
private String Pnr;
private long IdNo;

//getter methods
public String getName(){return this.name;}
public int getAge(){return this.Age;}
public int getSeatNo(){return this.SeatNo;}
public String getPnr(){return this.Pnr;}
public long getIdNo(){return this.IdNo;}

//setter methods

public void setName(String name){this.name = name;}
public void setAge(int age){this.Age = age;}
public void setSeatNo(int seatNo){this.SeatNo = seatNo;}
public void setPnr(String pnr){this.Pnr = pnr;}
public void setIdNo(long idNo){this.IdNo = idNo;}

//main method
public static void main(String[] args) {
// write your code here
Scanner x = new Scanner(System.in);
Passsenger Sai = new Passsenger();
//classname variable /refernce variable for object = new (for memory allocation) classname();
System.out.println("share your name");
String A =x.next();
System.out.println("share your age");
int B = x.nextInt();
System.out.println("your seat number ");
int C = x.nextInt();
System.out.println("your pnr number");
String D =x.next();
System.out.println("your ID number");
long E = x.nextLong();
//setter method calling
Sai.setName(A);
Sai.setAge(B);
Sai.setSeatNo(C);
Sai.setPnr(D);
Sai.setIdNo(E);
//getter method calling

String name = Sai.getName();{
System.out.println("Name : "+name);
}
int Age = Sai.getAge();{
System.out.println("Age : "+Age);
}
int SeatNo = Sai.getSeatNo();{
System.out.println("SeatNo : "+SeatNo);
}
String pnr = Sai.getPnr();{
System.out.println("PNR no. : "+pnr);
}
long idno = Sai.getIdNo();{
System.out.println("ID No. : "+idno);
}
}
}
[9/7, 12:00] ENTREPRENEUR: package com.aman;

import java.util.Scanner;

public class bankClass {
public static void main(String[] args) {
AtmOperationInterf op = new AtmOperationImpl();
int atmNumber = 12345;
int atmpin = 123;
Scanner x = new Scanner(System.in);
System.out.println("Enter Atm Number : ");
int atmnumber = x.nextInt();
System.out.println("Enter pin");
int pin = x.nextInt();
if ((atmNumber == atmnumber) && (atmpin == pin)){
while(true){
System.out.println(" 1.View Available Balance\n 2. Withdraw Amount\n 3.Deposit Amount \n 4.View Ministatement \n 5. Exit ");
System.out.println("Enter Choice");
int ch= x.nextInt();
if(ch==1){
op.viewBalance();
}
else if (ch==2){
System.out.println("Enter amount to withdraw");
double withdrawAmount = x.nextDouble();
op.withdrawAmount(withdrawAmount);
}else if (ch==3){
System.out.println("Enter amount to deposit");
double depositAmount = x.nextDouble();
op.depositAmount(depositAmount);
} else if (ch==4){
op.viewMiniStatement();
}else if (ch==5){
System.out.println("Collect ATM Card \n Thanks for Using ATM");
System.exit(0);
}
else{
System.out.println("Please Enter Correct Choice");
}
}
//System.out.println("validation Done");
}else
System.out.println("Incorrect Atm Number or Pin");
// System.exit(Status: 0);
}
}


public class ATM {

private double balance;
private double depositAmount;
private double withdrawAmount;

// constructor
public ATM() {

// public ATM (double bankAccountNumber, double depositAmount, double withdrawAmount) {
// this.bankAccountNumber = bankAccountNumber;
// this.depositAmount = depositAmount;
// this.withdrawAmount = withdrawAmount;
// }
// }
}

// getter/setter
public double getBalance() {
return balance;
}

public void setBalance(double balance) {
this.balance = balance;
}

public double getDepositAmount() {
return depositAmount;
}

public void setDepositAmount(double depositAmount) {
this.depositAmount = depositAmount;
}

public double getwithdrawAmount() {
return withdrawAmount;
}

public void setwithdrawAmount(double withdrawAmount) {
this.withdrawAmount = withdrawAmount;
}
}

import java.util.HashMap;
import java.util.Map;

class AtmOperationImpl implements AtmOperationInterf {
ATM atm = new ATM();
Map<Double,String> ministmt=new HashMap<>();
@Override
public void viewBalance() {
System.out.println("Available Balance is : "+atm.getBalance());

}

@Override
public void withdrawAmount(double withdrawAmount) {
if(withdrawAmount %500 ==0) {
if (withdrawAmount <= atm.getBalance()) {
ministmt.put(withdrawAmount, "Amount Withdrawn");

System.out.println("Collect the cash" + withdrawAmount);
atm.setBalance(atm.getBalance() - withdrawAmount);
viewBalance();
} else {
System.out.println("Insufficient Balance !!");
}
}else{
System.out.println("Please enter the amount in multiples of 500");
}

}

@Override
public void depositAmount(double depositAmount) {
ministmt.put(depositAmount,"Amount Deposited");
System.out.println(depositAmount+" Deposited Successfully !!");
atm.setBalance(atm.getBalance()+ depositAmount);
viewBalance();
}

@Override
public void viewMiniStatement() {
for(Map.Entry<Double,String> m:ministmt.entrySet()){
System.out.println(m.getKey()+""+ m.getValue());

}
}
}

public interface AtmOperationInterf {
public void viewBalance();
public void withdrawAmount(double withdrawAmount);
public void depositAmount(double depositAmount );
public void viewMiniStatement();
}
[9/7, 14:26] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if((i==j&&i<=4)(j==8-i&&i<=4)(j==4&&i>=4)){
System.out.print(" + ");
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/7, 14:30] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(j==8-ij==7-ij==6-ij==5-ij==4-ij==3-ij==2-i){
System.out.print(j);
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/7, 14:35] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(j==i+1j==i+2j==i+3j==i+4j==i+5j==i+6j==i+7){
System.out.print("*");
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/7, 14:38] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(j==i-1j==i-2j==i-3j==i-4j==i-5j==i-6j==i-7){
System.out.print(j);
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/7, 15:11] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");

for(int i= 5; i>=1; i--){
for(int j=5;j>=i ;j--){
System.out.println(j);
}
}
System.out.println();
}
}
[9/7, 15:14] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");

for(int i= 5; i>=1; i--){
for(int j=i;j<=5 ;j++){
System.out.println(j);
}
}
System.out.println();
}
}
[9/7, 15:17] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs "+"\n");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(i==1i==7 j==1 || j==7){
System.out.print(" + ");
}else
System.out.print(" ");
}System.out.println();
}
}
}

//0
[9/7, 15:22] ENTREPRENEUR: class Patterns {
public static void (String[] args) {
System.out.println("pattern programs "+"\n");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if((j==4 i==7)&&(i==4i<=4)){
System.out.print(" + ");
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/11, 10:00] ENTREPRENEUR: import java.util.Scanner;
class Reverse_Number{
public static void main(String[] args) {
System.out.println("Give a number for reversal");
Scanner x = new Scanner(System.in);
int A = x.nextInt();
int sum =0;
while(A!=0){
int d= A%10;
sum = sum*10+d;
A=A/10;
System.out.println(sum);
}
}
}
[9/11, 10:00] ENTREPRENEUR: import java.util.Scanner;
class Reverse_Number{
public static void main(String[] args) {
System.out.println("Give a number for reversal");
Scanner x = new Scanner(System.in);
int A = x.nextInt();
int sum =0;
while(A!=0){
int d= A%10;
sum = sum*10+d;
A=A/10;
System.out.println(A);
}
}
}
[9/11, 10:06] ENTREPRENEUR: import java.util.Scanner;
class Palindrome_Number{
public static void main(String[] args) {
System.out.println("Give a number for reversal");
Scanner x = new Scanner(System.in);
int A = x.nextInt();
int sum =0;
int b =A;
while(b!=0){
int d= b%10;
sum = sum*10+d;
b =b/10;
}if(A==sum)
System.out.println("this number is palindrome ");
else
System.out.println("this number is not a palidrome ");
}
}
[9/11, 10:10] ENTREPRENEUR: import java.util.Scanner;
class Large_Number{
public static void main(String[] args) {
System.out.println("Give a number for large");
Scanner x = new Scanner(System.in);
int A = x.nextInt();
int large =0;
while(A!=0){
int d= A%10;
if (d>large){
large=d;
}
A=A/10;
}System.out.println(large);
}
}
[9/11, 10:10] ENTREPRENEUR: WAP to display largest number
[9/11, 10:10] ENTREPRENEUR: WAP to find palindrome number
[9/11, 10:11] ENTREPRENEUR: WAP to find reversal pattern
[9/11, 10:23] ENTREPRENEUR: import java.util.Scanner;
public class StrongNumber{
private static Scanner x;
public static void main(String[] args){
int A, B, R, Sum = 0, i, Fact;
x = new Scanner(System.in);
System.out.print(" Please Enter any Number : ");
A = x.nextInt();
B = A;
while( B > 0){
Fact = 1;
i = 1;
R= B % 10;
while (i <= R)
{
Fact = Fact * i;
i++;
}
System.out.println(" The Factorial of " + R + " = " + Fact);
Sum = Sum + Fact;
B= B/10;
}

System.out.println(" The Sum of the Factorials of a Given Number " + A + " = " + Sum);

if ( A == Sum )
{
System.out.println("\n " + A + " is a Strong Number");
}
else
{
System.out.println("\n " + A + " is Not a Strong Number");
}
}
}
[9/11, 10:23] ENTREPRENEUR: WAP to find strong number using ifelse
[9/11, 10:30] ENTREPRENEUR: import java.util.Scanner;
public class Power{
public static void main(String...args){
Scanner x = new Scanner(System.in);
System.out.println("Enter number and power of number ");
int a = x.nextInt();
int b = x.nextInt();
int res = (int)Math.pow(a,b);
System.out.println(res);
}
}
[9/11, 10:30] ENTREPRENEUR: Power finder
[9/11, 10:33] ENTREPRENEUR: import java.util.Scanner;
public class Power{
public static void main(String...args){

Scanner x = new Scanner(System.in);
System.out.println("Enter number and power of number ");
int a = x.nextInt();
int b = x.nextInt();
int res =1;
for (int i =1 ;i<=b; i++){
res = res*a;
}
System.out.println(res);
}
}
[9/11, 10:33] ENTREPRENEUR: Power finder without library
[9/11, 10:50] ENTREPRENEUR: import java.util.Scanner;
public class Armstrong {
public static void main(String[] args) {
Scanner x = new Scanner(System.in);
int number =x.nextInt();
int originalNumber, remainder, result = 0;
originalNumber = number;
while (originalNumber != 0){
remainder = originalNumber % 10;
result += Math.pow(remainder, 3);
originalNumber /= 10;}
if(result == number)
System.out.println(number + " is an Armstrong number.");
else
System.out.println(number + " is not an Armstrong number.");
}
}
[9/11, 11:06] ENTREPRENEUR: import java.util.Scanner;
public class Armstrong {
public static void main(String[] args) {
Scanner x = new Scanner(System.in);
System.out.println("Enter number to find Armstrong number");
int number =x.nextInt();
int originalNumber, remainder, result = 0;
originalNumber = number;
while (originalNumber != 0){
remainder = originalNumber % 10;
result += Math.pow(remainder, 3);
originalNumber /= 10;}
if(result == number)
System.out.println(number + " is an Armstrong number.");
else
System.out.println(number + " is not an Armstrong number.");
}
}
[9/11, 11:06] ENTREPRENEUR: Armstrong number
[9/12, 11:50] ENTREPRENEUR: import java.util.Scanner;
public class Even_odd{
public static String check_last(int arr[], int n, int p){
int sum = 0;
for (int i = 0; i < n; i++)
sum = sum + arr[i];
if (p == 1){
if (sum % 2 == 0)
return "ODD";

else

return "EVEN";

}

return "EVEN";

}



public static void main(String[] args)

{

int arr[] = { 5, 7, 10 }, p = 1;

int n = 3;

System.out.print(check_last(arr, n, p));

}
}
[9/12, 11:50] ENTREPRENEUR: int size;
int[] myArray = new int[10];

Scanner input = new Scanner(System.in);

System.out.print("How many numbers do you enter:");
size = input.nextInt();

for(int c = 0; c < size; c++)
{
System.out.print("Enter number:");
myArray[c] = input.nextInt();
}

input.close();

for(int c = 0; c < size; c++)
{
System.out.println(myArray[c]);
}

if(size%2)
{
System.out.print("sadsadsad");
}
}
}
[9/12, 12:08] ENTREPRENEUR: import java.util.Scanner;
public class PrimeNumbers{
public static void main (String[] args){
int[] array = new int [5];
Scanner in = new Scanner (System.in);

System.out.println("Enter the elements of the array: ");
for(int i=0; i<5; i++)
{
array[i] = in.nextInt();
}
for(int i=0; i<array.length; i++){
boolean isPrime = true;
for (int j=2; j<i; j++){

if(i%j==0){
isPrime = false;
break;
}
}
if(isPrime)

System.out.println(i + " are the prime numbers in the array ");
}
}
[9/12, 12:33] ENTREPRENEUR: public class ReverseArray{
public static void main(String...args){
int [] a ={7,3,6,8,9,10};
for(int i =0 ; i<= a.length ; i++){
if(a[i]%3==0){
int sum =0;
sum= sum+a[i];
System.out.println("Number is divisible by 3 and sum is : " + sum);

}else
System.out.println("Not divisible by 3");
}
}
}
[9/15, 14:27] ENTREPRENEUR: import java.util.Scanner;

public class Main
{
public static void main(String[] args) {
Scanner in= new Scanner(System.in);
int i=1, binary=0, rem;

//Enter the decimal number
System.out.println("Enter a number");
int num = in.nextInt();

//Divide by 2 until number reduces to 0
while(num!=0){
rem = num%2;
binary += i*rem; //concatenate remainders in bottom-up manner
num = num/2;
i=i*10;
}

//Output the binary number
System.out.println("Binary: "+ binary);
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if((i==j&&i<=4)(j==8-i&&i<=4)(j==4&&i>=4)){
System.out.print(" + ");
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(j==8-ij==7-ij==6-ij==5-ij==4-ij==3-ij==2-i){
System.out.print(j);
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(j==i+1j==i+2j==i+3j==i+4j==i+5j==i+6j==i+7){
System.out.print("*");
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");

for(int i= 5; i>=1; i--){
for(int j=5;j>=i ;j--){
System.out.println(j);
}
}
System.out.println();
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(j==i-1j==i-2j==i-3j==i-4j==i-5j==i-6j==i-7){
System.out.print(j);
}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs ");

for(int i= 5; i>=1; i--){
for(int j=i;j<=5 ;j++){
System.out.println(j);
}
}
System.out.println();
}
}
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void main(String[] args) {
System.out.println("pattern programs "+"\n");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if(i==1i==7 j==1 || j==7){
System.out.print(" + ");
}else
System.out.print(" ");
}System.out.println();
}
}
}

//0
[9/15, 14:36] ENTREPRENEUR: class Patterns {
public static void (String[] args) {
System.out.println("pattern programs "+"\n");
for(int i=1 ; i<=7; i++){
for(int j = 1 ; j<=7; j++){
if((j==4 i==7)&&(i==4i<=4)){
System.out.print(" + ");

}else
System.out.print(" ");
}System.out.println();
}
}
}
[9/15, 15:38] ENTREPRENEUR: public class RightTrianglePattern
{
public static void main(String args[])
{
//i for rows and j for columns
//row denotes the number of rows you want to print
int i, j, row=6;
//outer loop for rows
for(i=0; i<row; i++)
{
//inner loop for columns
for(j=0; j<=i; j++)
{
//prints stars
System.out.print("* ");
}
//throws the cursor in a new line after printing each line
System.out.println();
}
}
}
[9/15, 15:40] ENTREPRENEUR: public class LeftTrianglePattern
{
public static void main(String args[])
{

int i, j, row = 5;

for (i=0; i<row; i++)
{

for (j=2*(row-i); j>=0; j--)
{

System.out.print(" ");
}

for (j=0; j<=i; j++ )
{

System.out.print("* ");
}
System.out.println();
}
}
}
[9/15, 15:48] ENTREPRENEUR: public class DownwardTrianglePattern
{
public static void main(String[] args)
{
int rows=5;
//inner loop
for (int i= rows-1; i>=0 ; i--)
{
//outer loop
for (int j=0; j<=i; j++)
{
//prints star and space
System.out.print("*" + " ");
}

System.out.println();
}
}
}
[9/15, 15:50] ENTREPRENEUR: public class RightDownMirrorPattern
{
public static void main(String args[])
{
int row=5;
for (int i= row; i>= 1; i--)
{
for (int j=row; j>i;j--)
{
System.out.print(" ");
}
for (int k=1;k<=i;k++)
{
System.out.print("*");
}
System.out.println("");
}
}
}
[9/15, 16:00] ENTREPRENEUR: public class RightDownMirrorPattern
{
public static void main(String args[])
{
int row=5;
for (int i= row; i>= 1; i--)
{
for (int j=row; j>i;j--)
{
System.out.print(" ");
}
for (int k=1;k<=i;k++)
{
System.out.print("*");
}
System.out.println("");
}
}
}
[9/15, 18:24] ENTREPRENEUR: public class Arraylastdig{
public static void main(String ... args){
int [] a= {3,7,8,6,5,9,7,3};
for (int i= a.length-1;i>=0 ; i--){
if(a[i]%2!=0){
System.out.print(a[i]);
break;
}
}
}
}
[9/15, 18:36] ENTREPRENEUR: public class Arraylastdig{
public static void main(String ... args){

int [] a= {3,7,8,6,5,9,7,3};
int i=0,j=0;
for (i=0;i<=a.length-1;i++){
if(a[i]%2==0){
break;
}
}
for(j=a.length-1; j>=0;j--){
if(a[i]%2!=0){
break;
}
int temp= a[i];
a[i] = a[i] ;
a[i] = temp;
System.out.print("after swapping");

for(i=0; i<=a.length-1; i++){
System.out.println(a[i] );
}
}
}
}
[9/15, 23:17] ENTREPRENEUR: package com.Aman;
import java.util.Scanner;

public class SwapSmallestLargestElement {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

int i, n;

System.out.println("Enter the size of array : ");
n = scanner.nextInt();

int arr[] = new int[n];

System.out.println("Enter the elements to be entered : ");
for(i=0;i<n;i++){
arr[i] = scanner.nextInt();
}

//Call a function Find maximum element of array
int maxElementPos = findMaxElement(arr,n);
System.out.println("The maximum element : "+ arr[maxElementPos]);

//Call a function Find minimum element of array
int minElementPos = findMinElement(arr,n);
System.out.println("The minimum element : "+ arr[minElementPos]);

//Call a function swap maximum and minimum element
swapMaxMinElement(arr, maxElementPos, minElementPos);

// Finally print array after swap
System.out.println("The array after swap is : ");
for(i=0;i<n;i++){
System.out.print(arr[i]+ " ");
}
}

//Find maximum element of array
public static int findMaxElement(int arr[],int n){
int i, pos=0;
int maxVal = arr[0];
for(i=0;i<n;i++){
if(arr[i]>maxVal){
maxVal = arr[i];
pos=i;
}
}
return pos;
}

//Find minimum element of array
public static int findMinElement(int arr[],int n){
int i, pos=0;
int minVal = arr[0];
for(i=0;i<n;i++){
if(arr[i] < minVal){
minVal = arr[i];
pos=i;
}
}
return pos;
}

//Swap maximum and minimum element
public static void swapMaxMinElement(int arr[], int maxElementPos, int minElementPos){

/*To swap max and min numbers, take a temporary variable, and follow the below step,
1) assign maximum number to temporary vaiable.
2) assign minimum number to maximum number.
3) asign temporary vaiable to minimum number*/

int temp;
temp = arr[maxElementPos];
arr[maxElementPos] = arr[minElementPos];
arr[minElementPos] = temp;
}
}
[9/15, 23:18] ENTREPRENEUR: package com.Aman;
public class SwapElementsExample {

public static void main(String[] args) {
int[] arr = {2,4,3,5,7,8,9};

System.out.println("Array before Swap" + "\n");
for (int element : arr) {
System.out.println(element);
}

//Simple Swapping logic
int temp = arr[1];
arr[1] = arr[2];
arr[2] = temp;

System.out.println("\n" + "Array after Swap" + "\n");
for (int element : arr) {
System.out.println(element);
}
}
}
[9/17, 12:06] ENTREPRENEUR: public class Symbol {
public static void main(String...args){
char ch = 'a';
if (!((ch>='A'&&ch>='Z')(ch>='a'&&ch>='z')(ch>='0'&&ch>='9'))){
System.out.print("Given chara is Symbol");
}
else
System.out.print("other chaar");

}
}
[9/17, 12:12] ENTREPRENEUR: public class Uppercas{
public static void main(String...args){
for(char i='A'; i<='Z';++i){

System.out.println(i);
}
}
}
[9/17, 12:18] ENTREPRENEUR: public class Uppercas{
public static void main(String...args){
for(char i='A'; i<='Z';++i){

System.out.println("ASCII CODE FOR " + i +" is "+ (int)i));
}
}
}
[9/17, 15:05] ENTREPRENEUR: public class ArraySwapping{
public static void main(String...args){
char [] a ={'a','b','c','@','$','#','1','2','3'};
char temporary = a[0];
a[0] = a[a.length-1];
a[a.length-1] = temporary;
System.out.print(a);
}
}
[9/17, 15:42] ENTREPRENEUR: public class ArrayDuplicated{
public static void main(String...args){
char []a ={'a','a','b','c','@','$','#','1','2','3'};


for(int i = 0; i <= a.length-1; i++) { char ch =a[i];
if(ch>='a'&&ch<='z'){
// System.out.print(ch);
}
char b [] = {ch};
// System.out.print(b);
}
}
}
[9/19, 14:35] ENTREPRENEUR: package com.Aman;
import java.util.Scanner;
public class Passsenger {
private String name;
private int Age;
private int SeatNo;
private String Pnr;
private long IdNo;

//getter methods
public String getName(){return this.name;}
public int getAge(){return this.Age;}
public int getSeatNo(){return this.SeatNo;}
public String getPnr(){return this.Pnr;}
public long getIdNo(){return this.IdNo;}

//setter methods

public void setName(String name){this.name = name;}
public void setAge(int age){this.Age = age;}
public void setSeatNo(int seatNo){this.SeatNo = seatNo;}
public void setPnr(String pnr){this.Pnr = pnr;}
public void setIdNo(long idNo){this.IdNo = idNo;}

//main method
public static void main(String[] args) {
// write your code here
Scanner x = new Scanner(System.in);
Passsenger Sai = new Passsenger();
//classname variable /refernce variable for object = new (for memory allocation) classname();
System.out.println("share your name");
String A =x.next();
System.out.println("share your age");
int B = x.nextInt();
System.out.println("your seat number ");
int C = x.nextInt();
System.out.println("your pnr number");
String D =x.next();
System.out.println("your ID number");
long E = x.nextLong();
//setter method calling
Sai.setName(A);
Sai.setAge(B);
Sai.setSeatNo(C);
Sai.setPnr(D);
Sai.setIdNo(E);
//getter method calling
String name = Sai.getName();{
System.out.println("Name : "+name);
}
int Age = Sai.getAge();{
System.out.println("Age : "+Age);
}
int SeatNo = Sai.getSeatNo();{
System.out.println("SeatNo : "+SeatNo);
}
String pnr = Sai.getPnr();{
System.out.println("PNR no. : "+pnr);
}
long idno = Sai.getIdNo();{
System.out.println("ID No. : "+idno);
}
}
}
[9/19, 19:05] ENTREPRENEUR: import java.util.*;

public class ArrayListMethods {

public static void main(String[] args) {
Scanner x = new Scanner(System.in);

System.out.println(" input 5 String values ");
String A = x.next();
String B = x.next();
String C = x.next();
String D = x.next();
String E = x.next();

ArrayList<String> sList = new ArrayList<String>();

sList.add(A);
sList.add(B);
sList.add(C);
sList.add(D);
sList.add(E);

System.out.println("String Added in ArrayList= "+ sList);


}

}
[9/19, 22:32] ENTREPRENEUR: import java.util.*;
public class ArrayListi{
public static void main(String...args){
ArrayList <String> list = new ArrayList<String> ();
Scanner x = new Scanner (System.in);
System.out.print("Enter Names ");
String Name = x.next();

for (int i = 1; i<= 5 ;i++){
list.add(Name);
}for (String A : list){
System.out.println(A);
}
}
}
[9/19, 23:12] ENTREPRENEUR: import java.util.*;
public class ArrayListi{
public static void main(String...args){
ArrayList <String> list = new ArrayList<String> ();
Scanner x = new Scanner (System.in);
System.out.print("Enter Names ");

for (int i = 1; i<= 5 ;i++){
list.add(x.next());
}for (String A : list){
System.out.println(A);
}
}
}
[9/20, 18:59] ENTREPRENEUR: java.util.*;
class Emp
{
int id;
String name;
double salaries;

Emp(int id,String name,double salaries)
{
this.id=id;
this.name = name;
this.salaries = salaries;
}
}
public class Main{
public static void main(String[]args)
{
int[] ids = {10,20,30};
String[] names = {"aman", "rash" ,"anand"};
double [] salaries = {2000,5000,70000};
List<Emp> list=new Arraylist<Emp>();

for(int i= 0; i<=ids.length-1;i++){
Emp e = new Emp(ids[i] , names [i], salaries [i]);
for(Emp e :list){
System.out.println(e.id + e.names + e.salaries);
}
}

}
}
[9/23, 17:09] ENTREPRENEUR: // wap to accept 2 numbers in b/w 2 numbers display all the prime numbers ....

import java.util.Scanner;

public class Prime {

public static void main(String[] args) {
Scanner x = new Scanner (System.in);
System.out.println("Enter a range for prime numberz ");
int low = x.nextInt();
int high = x.nextInt();

while (low < high) {
boolean flag = false;

for(int i = 2; i <= low/2; ++i) {
// condition for nonprime number
if(low % i == 0) {
flag = true;
break;
}
}

if (!flag && low != 0 && low != 1)
System.out.print(low + " ");

++low;
}
}
}
[9/23, 18:51] ENTREPRENEUR: // display 5 elements set using for each loop



import java.util.Set;
import java.util.HashSet;


class Main {
public static void main(String[] args) {
// Creating an set
Set<String> languages = new HashSet<>();
languages.add("Java");
languages.add("JavaScript");
languages.add("Python");
System.out.println("Set: " + languages);

// Using forEach loop
System.out.println("Iterating over Set using for-each loop:");
for(String language : languages) {
System.out.print(language);
System.out.print(", ");
}
}
}
[9/23, 18:51] ENTREPRENEUR: Display set through iterator
[9/24, 12:31] ENTREPRENEUR: // Wap arraylist of 5 employee object construct using pojo and display using iterator.

import java.util.*;

public class Employee {

private int id ;
private String name ;
private double salary;

// getter methods
public int getId(return this.id)
public String getName(return this.name);
public double getSalary(return this.salary);

// setter methods
public void setId(Int id ){this.id = id}
public void setName( String name){this.name= name}
piblic void setSalary(double salary){this.salary = salary}
// main methods
public static void main(String[] args) {
Scanner x = new Scanner(System.in);
List <Employee> list= new Arraylist<Employee>();
System.out.print("Enter 5 employee details");
for(int i= 1 ; i <= 5 ;i++){
System.out.print("Enter "+i+" Details");
int id = x.nextInt();
String name = x.next();
double salary = x.nextDouble();
Employee e = new Employee();
e.setId(id);
e.setName(name);
e.setSalary(salary);
System.out.println("Details are ");
Iterator<Employee> itr= list.iterator();
while(itr.hashNext()){
Employee e = itr.next();
System.out.print(e.getId +","+e.getName+","+e.getSalary);
}
}
}
}
[9/24, 15:53] ENTREPRENEUR: //****" Special type programs"

public class Main {
public static void main(String[] args) {
int a = 1;
for(a++;a++<=2;a++){
for(a++;a++<=7;a++){
a++;
}
}
System.out.println(a);
}

}
[9/24, 16:49] ENTREPRENEUR: public class HollowDiamondPattern4
{
public static void main(String args[])
{
//logic to print the first half pattern
for(int i=1; i<=10; i++)
{
for(int j=1; j<=10-i+1; j++)
{
System.out.print("*");
}
//loop calculates space
for(int k=1; k<=2*i-2; k++)
{
System.out.print(" ");
}
for(int j=1; j<=10-i+1; j++)
{
System.out.print("*");
}
System.out.println();
}
//logic to print the second half pattern
for(int i=9; i>=1; i--)
{
for(int j=i; j<=10; j++)
{
System.out.print("*");
}
//loop calculates space
for(int k=1; k<=(2*i)-2; k++)
{
System.out.print(" ");
}
for(int j=i; j<=10; j++)
{
System.out.print("*");
}
System.out.println();
[9/27, 12:17] ENTREPRENEUR: What is Join?
The Join operation is one of the most useful activities in relational
algebra. It is the most commonly used way to combine information from
two or more relations.
A JOIN clause is used to combine rows from two or more tables, based
on a related column between them.
There are the following types of join:
Inner joins:
Inner join is of 3 categories. They are:
Theta join
Natural join
Equi join
Outer joins: Outer join has three types. They are:
Left outer join
Right outer join
Full outer join
What is INNER JOIN in SQL?