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Thread: Newbie problem

  1. #1
    hyookai is offline Member
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    Question Newbie problem

    Hey, I started a while ago some Java tutorials and I encountered a problem with a small application from the tutorial. When I try to run it I get this error:

    -Cannot find the main class: arrayDemo. Program will exit.

    Here is the code of the application arrayDemo:

    Java Code:
    class ArrayDemo {
         public static void main(String[] args) {
              int[] anArray;              
    
              anArray = new int[10];      
                
              anArray[0] = 100; 
              anArray[1] = 200; 
              anArray[2] = 300; 
              anArray[3] = 400;
              anArray[4] = 500;
              anArray[5] = 600;
              anArray[6] = 700;
              anArray[7] = 800;
              anArray[8] = 900;
              anArray[9] = 1000;
    
              System.out.println("Element at index 0: " + anArray[0]);
              System.out.println("Element at index 1: " + anArray[1]);
              System.out.println("Element at index 2: " + anArray[2]);
              System.out.println("Element at index 3: " + anArray[3]);
              System.out.println("Element at index 4: " + anArray[4]);
              System.out.println("Element at index 5: " + anArray[5]);
              System.out.println("Element at index 6: " + anArray[6]);
              System.out.println("Element at index 7: " + anArray[7]);
              System.out.println("Element at index 8: " + anArray[8]);
              System.out.println("Element at index 9: " + anArray[9]);
         }
    }

  2. #2
    JosAH's Avatar
    JosAH is offline Moderator
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    Quote Originally Posted by hyookai View Post
    Hey, I started a while ago some Java tutorials and I encountered a problem with a small application from the tutorial. When I try to run it I get this error:

    -Cannot find the main class: arrayDemo. Program will exit.

    Here is the code of the application arrayDemo:

    Java Code:
    class ArrayDemo { ... }
    The name of the class is 'ArrayDemo', not 'arrayDemo'. Java is quite picky when it comes to capitalization of characters.

    kind regards,

    Jos
    The only person who got everything done by Friday was Robinson Crusoe.

  3. #3
    Petr's Avatar
    Petr is offline Senior Member
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    How Are you run this code? I guess You have mistake in name file and name class.
    Skype: petrarsentev
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  4. #4
    hyookai is offline Member
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    Ah, yeah I have been trying with lowercase letter. Thanks for the info I didn't know they had to be exactly the same. :)

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