public static String getName(int n) { String ming=""; Random random1=new Random(); String[] xing={"赵","钱","孙","李","周","吴","郑","王","冯","陈","褚","卫","蒋","沈","韩","杨","朱","秦","尤","许", "何","吕","施","张","孔","曹","严","华",...
代码语言:javascript 复制 privatestaticfinal String[]NAME_LIST={"赵","钱","孙","李","周","吴","郑","王","冯","陈","褚","卫","蒋","沈","韩","杨","朱","秦","尤","许","何","吕","施","张","孔","曹","严","华","金","魏","陶","姜","戚","谢","邹"...
System.out.println("---");//Collection<String> list2 = new ArrayList<String>();Collection<String> list2 =newArrayList<>();//JDK 7开始之后后面类型申明可以不写list2.add("Java");//list2.add(23);list2.add("黑马");// 集合和泛型不支持基本数据类型,只能支持引用数据类型//Collection<int> ...
public String replaceAll(String regex,String newStr) -- 按照正则表达式匹配的内容进行替换*/ public class RegexDemo04 { public static void main(String[] args) { String names = "小路dhdfhdf342蓉儿43fdffdfbjdfaf小何"; String[] arrs = names.split("\\w+"); for (int i = 0; i < arrs...
publicstaticList<Integer> numberList =newVector<Integer>();//Vector带有锁publicstaticvoidmain(String[] args)throwsInterruptedException {longbegin=System.currentTimeMillis();intcount=0;intstartnum=0;while(count<10000000){ numberList.add(startnum); ...
4、如果这样的主键值太长，超过前端 JS Number 类型最大值，须把 Long 型转换为 String 型，你会...
。也就是说在win系统中base64编码的时候,是将GBK编码的字符串,变成 byte数组,再变成base64字符串 'base64String'在网络中传送的是 'base64String',java这边收到后,用Base64解码base64String,解码成byte 数组,那这数组,对应的编码就是GBK。所以解码出来的要用GBK的方式来构建字符串, ...
。也就是说在win系统中base64编码的时候,是将GBK编码的字符串,变成 byte数组,再变成base64字符串 'base64String'在网络中传送的是 'base64String',java这边收到后,用Base64解码base64String,解码成byte 数组,那这数组,对应的编码就是GBK。所以解码出来的要用GBK的方式来构建字符串, ...
也就是说在win系统中base64编码的时候,是将GBK编码的字符串,变成 byte数组,再变成base64字符串 'base64String'在网络中传送的是 'base64String',java这边收到后,用Base64解码base64String,解码成byte 数组,那这数组,对应的编码就是GBK。所以解码出来的要用GBK的方式来构建字符串, 就是这样的代码。
publicclassSolution{publicStringreplaceSpace(StringBuffer str){// return str.toString().replace(" ","%20");StringBuilder sb=newStringBuilder();for(inti=0;i<str.length();i++){charc=str.charAt(i);if(c==' '){sb.append("%20");}else{sb.append(c);}}returnsb.toString();}} ...