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Thread: Runtime array programm but there is error in it.

  1. #1
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    Default Runtime array programm but there is error in it.

    //
    class abc
    {
    public static void main(String ar[][])
    {
    int a[][]=new int[2][3];
    int b[][]=new int[2][3];
    int i,j,k,l;
     
    for(i=0;i<2;i++)
    	{
    	for(j=0;j<3;j++)
    		{
    		a[i][j]=Integer.parseInt(ar[i][j]);
    		System.out.print("No is="+a[i][j]);
    		}
    	System.out.println();
    	}
    }
    }	
    //


    Error is:-Main method not found in class abc


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    Default Re: Runtime array programm but there is error in it.

    Welcome to the Forum! Thank you for taking the time to learn how to post code correctly. Please read this topic to see other useful info for newcomers.

    Please post your error(s) and ask specific questions. It's important to know that we're talking about and working to correct the same errors.

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    Junior Member Tjones787's Avatar
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    Default Re: Runtime array programm but there is error in it.

    What are the errors get when you run the program

    --- Update ---

    Look at your main class.. And what your program doing.
    Tjones787

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    Default Re: Runtime array programm but there is error in it.

    Error is:-Main method not found in class abc.
    My program is to enter the value of array during runtime.

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    Default Re: Runtime array programm but there is error in it.

    Many/most programs have a main() method. Look at some other programs and see what is different about your main() method.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Runtime array programm but there is error in it.

    Yeah. Cause you have a problem with your main method. Check your main method and see where you are wrong. The argument passed to your main method.
    Tjones787

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    Default Re: Runtime array programm but there is error in it.

    but this is the syntax for java.

    --- Update ---

    pls tell me the complete program.

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    Junior Member Tjones787's Avatar
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    Default Re: Runtime array programm but there is error in it.

    Check how other java programs main method looks like, then you get what's wrong with yours
    Tjones787

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    Default Re: Runtime array programm but there is error in it.

    but i am able to run the program with this


    class abc
    {
    public static void main(String ar[])
    {
    int a[]=new int[10];
    for(int i=0;i<10;i++)
    {
    a[i]=Integer.parseInt(ar[i]);
    System.out.println("No is="+a[i]);
    }
    }
    }

    This is correct programm but is ID array

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    Super Moderator Norm's Avatar
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    Default Re: Runtime array programm but there is error in it.

    i am able to run the program with this
    Can you explain what your problem is now?

    Please edit your post and wrap your code with code tags:
    [code=java]
    YOUR CODE HERE
    [/code]
    to get highlighting and preserve formatting.


    One possible problem I see is that the for loop control value is hardcoded as 10.
    It should use the .length attribute of the ar array.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Runtime array programm but there is error in it.

    Please check if multi dimensional array can be used as argument.
    Thanks and regards,
    Sambit Swain

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