Java-Programs-asked-in-Selenium-Interview

1. How to Print List of Even Numbers in Java?

 package JavaPrograms_InterviewQuestions;  import java.util.Scanner;  public class PrintEvenNumbers { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter Limit:"); int value = sc.nextInt(); System.out.println("Print Even numbers between 1 and " + value); for (int j = 1; j <= value; j++) { // if the number is divisible by 2 then it is even if (j % 2 == 0) { System.out.print(j + " "); } } } }

Output :

Enter Limit: 40 Print Even numbers between 1 and 40 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40

2.How to Compare Two Numbers In Java ?

 package JavaPrograms_InterviewQuestions; import java.util.Scanner; public class CompareTwoNumbersInJava { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter Number 1: "); int num1 = sc.nextInt(); System.out.println("Enter Number 2: "); int num2 = sc.nextInt(); if (num1 > num2) { System.out.println(num1 + " is greater than " + num2); } else if (num1 < num2) { System.out.println(num1 + " is less than " + num2); } else { System.out.println(num1 + " is equal to " + num2); } } }

Output :

Enter Number 1: 14 Enter Number 2: 12 14 is greater than 12

3.Access Modifiers in Java ?

package JavaPrograms_InterviewQuestions; public class Java_AccessModifier { public int a = 10; protected int b = 20; private int c = 30; int d = 40; public void test1() { System.out.println("public test1()"); } protected void test2() { System.out.println("protected  test2()"); } void test3() { System.out.println("void test3()"); } private void test4() { System.out.println("private  test4()"); } public static void main(String[] args) { Java_AccessModifier obj = new Java_AccessModifier(); obj.test1(); obj.test2(); obj.test3(); obj.test4(); System.out.println(obj.a); System.out.println(obj.b); System.out.println(obj.c); System.out.println(obj.d); } }

Output :

public test1() protected  test2() void test3() private  test4() 10 20 30 40

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4.Verify Year is Leap Year or Not in Java ?

package JavaPrograms_InterviewQuestions; import java.util.Scanner; public class VerifyLeapYear { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter Year: "); int year = sc.nextInt(); // if year is divisible by 4, it is a leap year if ((year % 400 == 0) || ((year % 4 == 0) && (year % 100 != 0))) { System.out.println("Year " + year + " is a leap year"); } else { System.out.println("Year " + year + " is not a leap year"); } } }   Note: Every fourth year is Leap Year. Output : Enter Year: 2008 Year 2008 is a leap year  

5. To verify whether the no is palindrome or not in java?

package JavaPrograms_InterviewQuestions; import java.util.Scanner; class VerifyPalindrome { public static void main(String args[]) { int r, sum = 0, temp; Scanner sc = new Scanner(System.in); System.out.println("Enter Number to Check Palindrome or Not:"); int n = sc.nextInt(); temp = n; while (n > 0) { r = n % 10; sum = (sum * 10) + r; n = n / 10; } if (temp == sum) { System.out.println("Given Number is Palindrome"); } else { System.out.println("Given Number is Not Palindrome "); } } }   Note: A palindromic number or numeral palindrome is a number that remains the same when its digits are reversed.   Output : Enter Number to Check Palindrome or Not: 5 Given Number is Palindrome

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6. Find Factorial of a Number in Java?

package JavaPrograms_InterviewQuestions; import java.util.Scanner; public class FactorialNumber { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter Number: "); int value = sc.nextInt(); int factorial = value; for (int a = (value - 1); a > 1; a--) { factorial = factorial * a; } System.out.println("Factorial of number is " + factorial); } }   Note : factorial of number 4!= 4*3*2*1=24. Output : Enter Number: 4 Factorial of number is 24

7.H ow to Display Fibonacci Series in java?

  package JavaPrograms_InterviewQuestions; import java.util.Scanner; public class FibonacciSeries { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter Number for Fibonacci series :"); int n = sc.nextInt(); int t1 = 0, t2 = 1; System.out.print("First " + n + " terms: "); for (int i = 1; i <= n; ++i) { System.out.print(t1 + " , "); int sum = t1 + t2; t1 = t2; t2 = sum; } } }   Output : Enter Number for Fibonacci series : 10 First 10 terms: 0 , 1 , 1 , 2 , 3 , 5 , 8 , 13 , 21 , 34 ,

8. To Check Whether a Number is Prime or Not in java?

 package JavaPrograms_InterviewQuestions; import java.util.Scanner; public class PrimeNumber { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter Prime Number: "); int num = sc.nextInt(); boolean flag = false; for(int i = 2; i <= num/2; ++i) { // condition for nonprime number if(num % i == 0) { flag = true; break; } } if (!flag) System.out.println(num + " is a prime number."); else System.out.println(num + " is not a prime number."); } }   Output : Enter Prime Number: 29 29 is a prime number.