设计思想:在命令行下以字符串形式输入几个数字,使用Double类的静态方法valueof传入字符串得到相应的数值型变量,一个for即可将所有的字符串转化为数值型相加. 程序流程图: 源代码: public class Course1 { public static void main(String[]ars) { double sum = 0; int len = ars.length; for(int i = 0;i<len;++i) { if((i+1)%2==0)System.out.pr
Compare two version numbers version1 and version2.If version1 > version2 return 1, if version1 < version2 return -1, otherwise return 0. You may assume that the version strings are non-empty and contain only digits and the . character.The . characte
检测传入字符串是否存在重复字符,返回boolean,比如"abc"返回true:"aac"返回false 这里提供两种思路: 第一种: import java.util.HashSet; import java.util.Set; public class Test { public static boolean checkDifferent2(String iniString) { //将参数的每一个字符都写入数组 String[] a = iniString.s
1.jquery的JSON字符串处理 var pwdlevel_val = "{"minLength":1,"maxLength":20,"lowercase":false,"uppercase":false,"number":false,"special":false,"limitday":"","maximum":