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Java Examples - Array filling


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Problem Description:

How to fill (initialize at once) an array ?

Solution:

This example fill (initialize all the elements of the array in one short) an array by using Array.fill(arrayname,value) method and Array.fill(arrayname ,starting index ,ending index ,value) method of Java Util class.

import java.util.*;

public class FillTest {
   public static void main(String args[]) {
      int array[] = new int[6];
      Arrays.fill(array, 100);
      for (int i=0, n=array.length; i < n; i++) {
         System.out.println(array[i]);
      }
      System.out.println();
      Arrays.fill(array, 3, 6, 50);
      for (int i=0, n=array.length; i< n; i++) {
         System.out.println(array[i]);
      }
   }
}

Result:

The above code sample will produce the following result.

100
100
100
100
100
100

100
100
100
50
50
50


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