Java 示例 sort () 和 binarySearch () 方法

import java.util.Arrays;



public class MainClass {

   public static void main(String args[]) throws Exception {



      int array[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 };

      Arrays.sort(array);

      printArray("Sorted array", array);

      int index = Arrays.binarySearch(array, 2);

      System.out.println("Found 2 @ " + index);

   }

   private static void printArray(String message, int array[]) {

      System.out.println(message + ": [length: " + array.length + "]");



      for (int i = 0; i < array.length; i++) {

         if(i != 0) {

            System.out.print(", ");

         }

         System.out.print(array[i]);                     

      }

      System.out.println();

   }

}