Java API Classes Used In This Chapter

Manipulating Arrays With The java.util.Arrays Class

The Java platform makes it easy to perform common array manipulations such as searching and sorting with the java.util.Arrays class. Example 8.14 offers a short program that shows the Arrays class in action sorting an array of integers. Figure 8-26 shows the results of running this program.

Example 8.14: ArraySortApp.java

 1     import java.util.*; 2 3     public class ArraySortApp { 4       public static void main(String[] args){ 5        int[] int_array = {100, 45, 9, 1, 34, 22, 6, 4, 3, 2, 99, 66}; 6 7        for(int i=0; i<int_array.length; i++){ 8         System.out.print(int_array[i] + " "); 9        } 10       System.out.println(); 11 12       Arrays.sort(int_array); 13 14       for(int i=0; i<int_array.length; i++){ 15         System.out.print(int_array[i] + " "); 16       } 17       System.out.println(); 18      } // end main() method 19     } // end ArraySortApp class definition

Figure 8-26: Results of Running Example 8.14