Next in our written exam solution series
Sherlock number this was asked in Mindtree 21st and 22nd Feb

https://youtu.be/H-COtpDvupo

/* Question - 19

Java Program To Find Fibonacci Series

*/

package ABC;

import java.util.*;

public class Main {

public static void main(String[] args) {

int Num1=0,Num2=1,Num3,Total_Num;

Scanner S = new Scanner(System.in);

System.out.print("Fibonacci Series Upto :");

Total_Num = S.nextInt();

for(int i=1;i<=Total_Num;++i)
{
System.out.print(Num1+",");

// Printing The Next Terms

Num3 = Num1 + Num2;

Num1 = Num2;

Num2 = Num3;

}
}
}

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/* Question - 15

🚨 Interview Important Question 🚨

Java Program Swapping Of Two Numbers Without Using Third Variable

*/

package ABC;

import java.util.*;

public class Main {

public static void main(String[] args) {

int Num1,Num2;

Scanner S = new Scanner(System.in);

System.out.println("Enter Value Num1:");

Num1 = S.nextInt();

System.out.println("Enter Value Num2:");

Num2 = S.nextInt();

// Condition

Num1 = Num1 + Num2;

Num2 = Num1 - Num2;

Num1 = Num1 - Num2;

// After Swapping

System.out.printf("Value Of Num1,Num2 Are :%d %d",Num1,Num2);

}
}

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Next in our Basic java series
if else if statement
https://youtu.be/txDM8X6ajds