Using while loop i want to print 10 even numbers

Question

I want to print 10 even numbers using while loop but I am unable to do that.

Here is my code,

public class WhileEven {

    public static void main(String[] args) {
        int i=0;
        System.out.println("Even numbers");
        while(i<=10)
        {
            int num=0;
            System.out.println(num);
            i+=1;
            num+=2;
        }
    }
}

can someone help as where i am going wrong?

Comments

WAP that accept 10 natural numbers and display the sum using-while, do-while, for loop.

Answer 1

Hello @Nitesh, you are pretty much there. The only mistake you are doing is assigning the num inside the loop.

public class WhileEven {

    public static void main(String[] args) {
        int i=0;
        int num=0;
        System.out.println("Even numbers");
        while(i<=10)
        {
            System.out.println(num);
            i+=1;
            num+=2;
        }
    }
}

Now what was happening is that every time you were inside the loop the num gets assigned to 0. and you get the miscellaneous output. 

Comments

how if its 

Write a program using While loop that adds all the even numbers less than 100 from  a given sequence of positive integeres. The sequence ends with -999.

---

hmm yeah little correct

Answer 2

public class Loops {
    public static void main(String [] args){
        int x = 1;
        System.out.println("Even numbers");
        while(x<=5){
            System.out.println(x * 2);
           x++;
        }
    }
}

Comments

Hey! Register to Edureka Community to earn points and reputations for every contribution(asking, answering or commenting)

---

wrong answer

---

this will not work for more num ,after every loop it will take as :

x*2=2

i++;

x*3=6

it will miss between no.

Answer 3

C program to print EVEN numbers from 1 to N using while loop

1. There are two variables declared in the program 1) number as a loop counter and 2) n to store the limit.
2. Reading value of n by the user.
3. Initialising loop counter (number) by 1 as initial value number =1.

Given a list of numbers, write a Python program to print all even numbers in given list. Using for loop : Iterate each element in the list using for loop and check if num % 2 == 0. If the condition satisfies, then only print the number. # we can also print even no's using lambda exp.

Comments

Write while loops to display the following sequences: First fifty positive even integers

Answer 4

To print the numbers from 1 to 10,

1. We will declare a variable for loop counter (number).
2. We will check the condition whether loop counter is less than or equal to 10, if condition is true numbers will be printed.
3. If condition is false – loop will be terminated.

Answer 5

<?php

while($x=0)

{

echo"\n",$x;

$x=$x+2

}

?>