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Thread: Array Index out of bounds Exception

  1. #1
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    Default Array Index out of bounds Exception

    My code is generating Array Index out of bounds Exception after creating a array of 10 numbers that go from 0 to 99. Any help would be appreciated.

    Thanks

    public class SwapMaxMin {
     
    	public static void main(String[] args) {
     
    		// declare an integer array with 10 elements
    		int [] myScore = new int [10];
    		int i;
     
    		// initialize an array with random numbers
    		for (i = 0; i < myScore.length; i++)
    			myScore[i] = (int)(Math.random()*100);
    		// print an array
    		for (i = 0; i < myScore.length; i++)
    			System.out.println("myScore[" + i + "]= " + myScore[i]);
     
     
     
    		int max = myScore[0];
    		int indexOfMax = 0;
     
    		for ( i = 0; i < myScore.length; i++);
    			if (myScore[i] > max){
    				max = myScore[i];
    				indexOfMax = i;
    				}
     
    		int min = myScore[0];
    		int indexOfMin = 0;
     
    		for( i = 0; i < myScore.length; i++);
    			if (myScore[i] < min) {
    				min = myScore[i];
    				indexOfMin = i;
    			}
    			System.out.println("The largest number is " + max + " and at [ " + indexOfMax + " ] " );
    			System.out.println("The smallest number is " + min + " and at [ " + indexOfMin + " ] " );
    		}
    }


  2. #2
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    Default Re: Array Index out of bounds Exception

    Hello Tohtekcop!
    		for ( i = 0; i < myScore.length; i++);

    You accidentally(?) added semicolons after the for statement in the last two for loops. These may have caused the Exception.

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    Default Re: Array Index out of bounds Exception

    		for ( i = 0; i < myScore.length; i++);
    			if (myScore[i] > max){
    				max = myScore[i];
    				indexOfMax = i;
    				}
     
    		int min = myScore[0];
    		int indexOfMin = 0;
     
    		for( i = 0; i < myScore.length; i++);

    Your for loops end with a semi-colon instead of opening a new curly brace, sort them out and all will be fine.


    Edit: Beaten to it.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: Array Index out of bounds Exception

    Ugh.... Thanks! How do I change the topic to solved?

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    Default Re: Array Index out of bounds Exception

    Quote Originally Posted by Tohtekcop View Post
    Ugh.... Thanks! How do I change the topic to solved?
    Go to Thread Tools and then Mark this thread as solved.

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