与数组相关的工具Arrays

/*
 * java.util.Arrays 是与数组相关的工具类
 * */
public class Test3 {
	public static void main(String[] args) {
		/*1
		 * toString(数组) 将数组转换成字符串 [元素1，元素2，元素3]
		 * */
		String [] a = {"a","b","cc","ddd"};
		String string2 = Arrays.toString(a);
		System.out.println(string2);
		
		
		/*2
		 * sort(数组) 按照默认升序对数组的元素排序
		 * */
		int[] array={2,0,5,2,5,1,0,3,0,1,02,01};
		Arrays.sort(array);
		for (int i : array) {
			System.out.print(i+" ");
		}
	}

}