/** * 產生隨機字符串 * */ private static Random randGen = null; private static char[] numbersAndLetters ...

public static void main(String[] args) { char[] origin = { 'a', 'b', 'c', 'd', 'e', 'f' }; int le...

public class CutString { public static void main(String[] args) throws Throwable { //begin 起始字節位置...

public class CountStringMaxSign { public String getMaxCountSign(String str){ if(str==null || str....

package cn.cxy.test; import java.util.HashMap; import java.util.Map; public class CountChar { sta...