有什么作用

解决方案 »

  1.   

    UserBean 是一个类,在类中生命变量,通常没有方法(除了构造方法)例如:
    public class UserBean{       private String userName;
           private String userAge;
           public String getUserName(){
                  return this.userName;
           }
           public void setUserName(String userName){
                  this.userName = userName;
           }
           public String getUserAge(){
                  return this.userAge;
           }
           public void setUserAge(){
                  this.userAge = userAge;
           }}