50 lines
1.5 KiB
Java
50 lines
1.5 KiB
Java
public class FindMiddleIndex
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{
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public static int findMiddleIndex(int[] numbers) throws Exception
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{
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int endIndex = numbers.length - 1;
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int startIndex = 0;
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int sumLeft = 0;
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int sumRight = 0;
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while (true)
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{
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if (sumLeft > sumRight)
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{
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sumRight += numbers[endIndex--];
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}
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else
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{
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sumLeft += numbers[startIndex++];
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}
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if (startIndex > endIndex)
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{
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if (sumLeft == sumRight)
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{
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break;
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}
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else
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{
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throw new Exception(
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"Please pass proper array to match the requirement");
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}
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}
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}
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return endIndex;
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}
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public static void main(String a[])
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{
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int[] num = { 2, 4, 4, 5, 4, 1 };
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try
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{
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System.out.println("Starting from index 0, adding numbers till index "
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+ findMiddleIndex(num) + " and");
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System.out.println("adding rest of the numbers can be equal");
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}
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catch (Exception ex)
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{
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System.out.println(ex.getMessage());
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}
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}
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} |