import java.util.ArrayList;import java.util.Arrays;import java.util.Collection;import java.util.Collections;import java.util.List;public class Test{				public static void main(String[] args) {				/*		 * Arrays 提供了很多对数组操作的函数		 * 这里只演示几个常用功能呢个		 */				System.out.println("-----------Arrays--------------");		String[] s = new String[10];		Arrays.fill(s, "a");		System.out.println("Arrays.fill :  " + Arrays.deepToString(s));		s = new String[]{"Jone","tom", "jerry"};		System.out.println("Arrays.deepToString : " + Arrays.deepToString(s));		Arrays.sort(s);		System.out.println("Arrays.sort : " + Arrays.deepToString(s));		System.out.println("Arrays.binarySearch : " + Arrays.binarySearch(s, "jerry"));			/*		 * Collections 提供了很多对集合操作的函数		 * 这里只演示几个常用功能呢个		 */		System.out.println("-----------Collections--------------");		List
     
       s1 = new ArrayList
      
       ();		Collections.fill(s1, "bb");		System.out.println("Collections.fill bb : " + s1);		s1.add("Jone"); s1.add("tom");  s1.add("jerry"); 		Collections.fill(s1, "cc");		System.out.println("Collections.fill bb : " + s1);  //只能替换已存在的		s1.clear();		s1.add("Jone"); s1.add("tom");  s1.add("jerry"); 		System.out.println(s1);				Collections.sort(s1);		System.out.println("Collections.sort : " + s1);		System.out.println("Collections.binarySearch : " + Collections.binarySearch(s1, "jerry"));				System.out.println("Collections.max : " + Collections.max(s1) + "Collections.min :" + Collections.min(s1));	}}输出：-----------Arrays--------------Arrays.fill :  [a, a, a, a, a, a, a, a, a, a]Arrays.deepToString : [Jone, tom, jerry]Arrays.sort : [Jone, jerry, tom]Arrays.binarySearch : 1-----------Collections--------------Collections.fill bb : []Collections.fill bb : [cc, cc, cc][Jone, tom, jerry]Collections.sort : [Jone, jerry, tom]Collections.binarySearch : 1Collections.max : tomCollections.min :Jone