wzz24的专栏

**************************************************JAVA心得体会**********************************************04/01/261。与c++构造函数的不同：看这个  class  constr{  private int x;  private double y;  constr(){       

import java.io.*;import java.util.*;class User{  private String username;  private String acctstatustype;  private String acctsessiontime;      void setUname(String s){username=s;}  void setAtype(St

import java.io.*;//BASE64 code 4 filepublic class Base64{  static String BaseTable[] = { "A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P", "Q","R","S","T","U","V","W","X","Y","Z","a",