Java Hyd Team

Conducting for 3hour only will explain how to program and one question of last session (what's the real-time implementation of abstract classes ). 10am -1 pm

Will try to cover everything but be available as we will cover things fast in-depth

165 viewsedited 14:55

Java Hyd Team

public static void main(String[] args) {
double a ,b ;
a= System.currentTimeMillis();
List<Double> list = of(1, 1000000000).boxed().collect(Collectors.toList());
list.forEach(obj -> System.out.print(obj));
b=System.currentTimeMillis();
System.out.println(b-a);
}
}

👍1

166 views16:52

Java Hyd Team

execute this code

156 views16:52

Java Hyd Team

Not conducting today some work is there will schedule for next Sunday

146 views03:58

Java Hyd Team

Or in lab we will cover of get time

145 views03:58

Java Hyd Team

package com.Aman;
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

import java.util.stream.LongStream;
import static java.lang.System.currentTimeMillis;
import static java.util.stream.DoubleStream.of;
public class Billions {
/* public static void main(String[] args) {
double n=0;
do{
System.out.println(n);
n+=1;
}while(n<100000000);
}*/
// public static void main(String[] args) {
/*double a ,b ;
a= currentTimeMillis();
List<Double> list = of(1, 1000000000).boxed().toList();
list.forEach(System.out::println);
b= currentTimeMillis();
System.out.println(b-a);
}*/
/* public static void main(String[] args) {
double a ,b ;
a= currentTimeMillis();
// Using Java 8 Stream API to print 1 billion numbers
IntStream.range(1, 1000000000).forEach(System.out::println);
b= currentTimeMillis();
System.out.println(b-a);
}
}*/
//}

public static void main(String[] args) {
long count = IntStream.rangeClosed(1,1000000000).parallel().count();
System.out.println(count);
}

}

147 views04:02

Java Hyd Team

uncomment and run the programs

131 views04:02

Java Hyd Team

import java.util.*;
public class _7_12_2022 {
public static void main(String[] args) {
String a = "sathyaa";
Map<Character, Integer> m = new HashMap<>();
for(int i = 0; i < a.length(); i++){
if(m.containsKey(a.charAt(i))){
m.put(a.charAt(i), m.get(a.charAt(i))+1);
} else {
m.put(a.charAt(i), 1);
}
}
System.out.println(m.toString());

/*String s = "aabbcbabadchisidb";
Map<Character, Integer> m = new HashMap<>();

for(int i = 0; i < s.length(); i++){
if(m.containsKey(s.charAt(i))){
m.put(s.charAt(i), m.get(s.charAt(i))+1);
} else {
m.put(s.charAt(i), 1);
}
}
Collection<Integer> a = m.values();
int max = Collections.max(a);
for(Character ch : m.keySet()){
if(m.get(ch)==max){
System.out.println(ch+"-"+m.get(ch));
}
}
*/
}

}

👍1

132 views04:03

Java Hyd Team

public class String_Palidrome {
//create class (class doesn't allocate space
public static void main(String[] args) {
//main method allocates space for the project in heap
String inputString = "paap";
//declaring and initializing string value
int length = inputString.length();
// initializing length with array value length
int i, begin, end, middle;
// declaring variable in int datatype
begin = 0;//initializing variable with value
end = length - 1;//initializing variable with value
middle = (begin + end) / 2;//initializing variable with value
for (i = begin; i <= middle; i++) { // for loop
if (inputString.charAt(begin) == inputString.charAt(end)) { //conditional blocks
begin++; // post increment after
end--; // post decrement after
} else { //conditional blocks
System.out.println("Not a palindrome.");//output statement
break; // breaks statement
}
}
if (i == middle + 1) { //conditional blocks
System.out.println("Palindrome."); // output statement
}
}
}

129 views04:03

Java Hyd Team

public class RemoveDuplicates {
public static void main(String[] args) {
String str = "sathya";
RemoveDuplicates obj = new RemoveDuplicates();
System.out.println(obj.removeDuplicates(str));
}
public String removeDuplicates(String s) {
char[] chars = s.toCharArray();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < chars.length; i++) {
String str = String.valueOf(chars[i]);
if (!sb.toString().contains(str)) {
sb.append(str);
}
}
return sb.toString();
}
}

119 views04:04

Java Hyd Team

import java.util.Arrays;

public class Anagram {
public static void main(String[] args) {
String str1 = "silent";
String str2 = "lister";
boolean status = true;
if (str1.length() != str2.length()) {
status = false;
} else {
char[] arr1 = str1.toLowerCase().toCharArray();
char[] arr2 = str2.toLowerCase().toCharArray();
Arrays.sort(arr1);
Arrays.sort(arr2);
status = Arrays.equals(arr1, arr2);
}
if (status) {
System.out.println("Strings are anagrams");
} else {
System.out.println("Strings are not anagrams");
}
}
}

116 views04:04

Java Hyd Team

package com.Aman;
import java.util.Scanner;
public class CompareStrings {
public static void main(String[] args) {
Scanner x = new Scanner(System.in);
System.out.println("Enter two strings");
String str1 = x.next();
String str2 = x.next();

// Compare two strings in length
int result = str1.compareTo(str2);

if(result < 0) {
System.out.println("String 1 is shorter than String 2");
} else if(result == 0) {
System.out.println("String 1 and String 2 are equal in length");
} else {
System.out.println("String 1 is longer than String 2");
}
}
}

115 views04:04

Java Hyd Team

import java.util.Scanner;
public class Armstrong {
public static void main(String[] arg) {
int a,arm=0,n,temp;
Scanner sc=new Scanner(System.in);
System.out.println("Enter a number");
n=sc.nextInt();
temp=n;
for( ;n!=0;n/=10 )
{
a=n%10;
arm=arm+(a*a*a);
}
if(arm==temp)
System.out.println(temp+" is a armstrong number ");
else
System.out.println(temp+" is not a armstrong number ");
}
}

118 views04:05

Java Hyd Team

import java.util.Scanner;
public class FloyidsTriangle {
public static void main(String[] args){
int n,i,j,k = 1;
System.out.println("Enter the number of lines you need in the FloyidsTriangle");
Scanner sc = new Scanner(System.in);
n = sc.nextInt();
for(i = 1; i <= n; i++) {
for(j=1;j <= i; j++){
System.out.print(" "+k++);
}
System.out.println();
}
}
}

112 views04:05

Java Hyd Team

import java.util.*;
public class Lucky_Number {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the car no:");
int num = sc.nextInt();
if (num < 1 || num > 9999) {
System.out.println(num + " is not a valid car number");
} else {
int sum = 0;
while (num > 0) {
sum += num % 10;
num /= 10;
}

            if (sum % 3 == 0  sum % 5 == 0  sum % 7 == 0) {

            System.out.println("Lucky Number");

        } else {

            System.out.println("Sorry its not my lucky number");

}
}

115 views04:05

Java Hyd Team

package com.Aman;

import java.util.Scanner;

public class kShapeAlphabets1 {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);
int i, j, alphabet;

System.out.print("Enter K Shape Alphabets Pattern Rows = ");
int rows = sc.nextInt();

System.out.println("Printing K Shape Alphabets Pattern");

for (i = rows - 1; i >= 0; i-- )
{
alphabet = 65;
for (j = 0 ; j <= i; j++ )
{
System.out.print((char)(alphabet + j) + " ");
}
System.out.println();
}

for (i = 1 ; i < rows; i++ )
{
alphabet = 65;
for (j = 0 ; j <= i; j++ )
{
System.out.print((char)(alphabet + j) + " ");
}
System.out.println();
}
}
}

110 views04:05

Java Hyd Team

package com.Aman;
import java.util.Scanner;
public class Staircase {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Input: n = ");
int n = sc.nextInt();
sc.close();
System.out.println("Output: " + countWays(n));
}// Function to count the number of ways to reach nth stair
static int countWays(int n){
// base case
if(n == 1)
return 1;
if (n == 2)
return 2;
return countWays(n - 1) + countWays(n - 2);
}
}

104 views04:05

Java Hyd Team

package com.Aman;
public class MadamAroraPalidrome {
/*public static void main(String[] args) {
String str = "madam arora teaches malayalam";
int startIndex = 0;
int endIndex = 0;
int count = 0;
for (int i = 0; i < str.length(); i++) {
if (str.charAt(i) != ' ') {
startIndex = i;
while (i < str.length() && str.charAt(i) != ' ') {
i++;
}
endIndex = i - 1;
String subString = str.substring(startIndex, endIndex + 1);
if (checkPalindrome(subString)) {
System.out.println(subString + " is a palindrome");
count++;
}
}
}
System.out.println("Total number of palindromes in given string is: " + count);
}
public static boolean checkPalindrome(String subString) {
int left = 0;
int right = subString.length() - 1;
while (left <= right) {
if (subString.charAt(left) != subString.charAt(right)) {
return false;
}
left++;
right--;
}
return true;
}
}*/
public static void main(String[] args) {
String str = "madam arora teaches malayalam";
String[] words = str.split(" ");

for (String a : words) {
String c = "";
for (int i = a.length() - 1; i >= 0; i--) {
c = c + a.charAt(i);
}
if (a.equals(c)) {
System.out.println(a);
}
}
}
}

121 views04:08

Java Hyd Team

every message contains 2-3 programs

110 views04:09

Java Hyd Team

package com.Aman;
import java.util.regex.Pattern;
public class Q1_A4 {
// Java Program to reverse a String
// without using inbuilt String function
// Method to reverse words of a String
static String reverseWords(String str) {
// Specifying the pattern to be searched
Pattern pattern = Pattern.compile("\\s");
// splitting String str with a pattern
// (i.e )splitting the string whenever there
// is whitespace and store in temp array.
String[] temp = pattern.split(str);
StringBuilder result = new StringBuilder();
// Iterate over the temp array and store
// the string in reverse order.
for (int i = 0; i < temp.length; i++) {
if (i == temp.length - 1)
result.insert(0, temp[i]);
else
result.insert(0, " " + temp[i]);
}
return result.toString();
}
// Driver methods to test above method
public static void main(String[] args) {
String s1 = "There is a Cat";
System.out.println(reverseWords(s1));

String s2 = " Cat is there";
System.out.println(reverseWords(s2));
}
}

129 views04:09

Java Hyd Team

package com.Aman;
public class Q1_A4_2 {
public static void main(String ... args){
String s ="there is a cat";
char []ch = s.toCharArray();
String[]A=new String[4];
int index = 0;
for(int i = 0; i<=ch.length-1;i++)
if(ch[i]!=' '){
A[index]=A[index]+ch[i];
}else
index++;
//static char[] swap(String str, int i, int j) {
// char[] ch = str.toCharArray();
//char temp = ch[i];
//ch[i] = ch[j];
//ch[j] = temp;
//return ch;
// }
// public static void main(String[] args) {
// String s = "aman";
//System.out.println(swap(s, 5, s.length() - 2));
// System.out.println(swap(s, 0, s.length() - 1));

//System.out.println(s);
}
}

143 views04:09

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