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Thread: find an error

  1. #1
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    Default find an error

    public class ForLoop{
    	public static void main(String args[]){
    		for(int i=50;i<80;i++){
    		if(i%2==0){
    		System.out.println(i);
    		}
    		else{
    		break;
    		}
    		}
    		}
    		}
    Last edited by pbrockway2; June 25th, 2013 at 11:31 PM. Reason: code tags added


  2. #2
    Super Moderator pbrockway2's Avatar
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    Default Re: find an error

    Hi nehaverma, wecome to the forums!

    When you post code, use the code tags. Put [code] at the start of a section of code and [/code] at the end. That way the forum software will attempt to format your code properly for a web page.

    You could clean up the indents a bit. Blocks of code are indented. And the closing } should go on a line of ots own.
    public class ForLoop{
    	public static void main(String args[]){
    		for(int i=50;i<80;i++){
    		    if(i%2==0){
    		        System.out.println(i);
    		    }
    		    else{
    		        break;
    		    }
    	    }
    	}
    }

    Part of the formatting may be due to using tabs. It's better, I think, to use spaces. They are more reliable.

    Now the problem... You should tell us what it is

    Does the code compile? If it doesn't compile and you can't understand the compiler'message, post the whole message.

    If it compiles but does not do at runtime what you expect or intend, describe what you intended and what the program actually did. If there was an exception, again post the whole stack trace (the long message that an exception produces on the console.)

  3. #3
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    Default Re: find an error

    I cannot see any point to this code. For the first value of 50 it is even and enters the if branch and prints out the value. Then the value becomes 51 which is odd and enters the else branch and exits the loop and the program ends. Perhaps you can provide more details of what you are trying to achieve.
    Improving the world one idiot at a time!

  4. #4
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    Default Re: find an error

    My guess is, he is trying to calculate how many even numbers there are between 50 and 80, but the thing is, you need to use different type of the variable i, because int can only be a full number, etc. 1,2,3,16...So when you modulus the number it will always be 0. You can try using "double" or "float".
    Hope this helps,
    G
    Quote Originally Posted by nehaverma View Post
    public class ForLoop{
    	public static void main(String args[]){
    		for(int i=50;i<80;i++){
    		if(i%2==0){
    		System.out.println(i);
    		}
    		else{
    		break;
    		}
    		}
    		}
    		}

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