saca0003的专栏

java api介绍 1.字符串输出api package demo01; import java.util.Arrays; public class Demo01 { public static void main(String[] args) { int[] ary = new int[5]; System.out.println(Arrays.toString(ary))

package demo01; import java.util.Arrays; import java.util.Random; public class Demo01 { /** * @param args */ public static void main(String[] args) { // int[] aryone = new int[]{1,2,3,4,5,6,

package demo01; import java.util.Arrays; import java.util.Random; public class Demo02 { /** 此方法实现从'A' ~ 'L'中获得不重复的字母序列 */ public char[] generate(int n){ char[] chs = {'A', 'B', 'C', 'D', 'E