e406.java

清华大学第二版

import java.util.*;
public class e406{
public static void main(String[] args){
int ia[]=new int[] {4,18,6,10,25,3};
Arrays.sort(ia);
for (int i=0;i<ia.length;i++)
System.out.println(ia[i] + " ");

System.out.println(  Arrays.binarySearch(ia, 18)  );

}}