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Any number divisible by 2 is an even number. Here we will see a writing program using a while loop to print all even numbers between 1 and 100.

When we divide the number by 2 we will get the remainder zero which is the property of an even number.

Steps:

1. In the below Program, we are starting iteration with 1 and checking its divisibility by 2 in the if block.
2. If the condition is satisfied, we print it and in both scenarios, we are incrementing the number by 1.
3. For eg . 3%2 = 1, which does not satisfy our if condition and hence skips the printing and directly increments it. Now the number will become 4 after incrementing 1.

Java Program to print even numbers between 1 to 100 using while loop

import java.util.*;
public class Main
{
	public static void main(String args[])
	{
		int start = 1;
		int end = 100; 
		System.out.println("Even numbers between "+ start+ " and " +end+ " are :");
		while(start<=end) {
			if(start%2 == 0) {
			System.out.println(start);
			}
			start++;
		}
	}
}

Output

Even numbers between 1 and 100 are :
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
88
90
92
94
96
98
100