[Java]直接看问题

[冯文议]

User类
public class User {
private int id;

public void setId(Int id) {
this.id = id;
}

public void getId() {
return id;
}
}
Main类
public class Main{
public static void main(String [] args) {
User user = new User();
user.setId(1);
}
}
Say类
我的问题是：我想在这个类里面得到刚刚赋的值，这个类应该怎么写呢？
可以联系我，QQ：3232445924

[尼古拉斯-全蛋]

say类里写一个方法接收user，在main中传进去

[小七和十一的爸爸]

//Main
public class Main{
        public static void main(String [] args) {
                   User user = new User();
                   user.setId(1);
                   Say(user);
        } 
        //Say
       public static  void Say(User user){
    	   System.out.println("输入的值："+user.getId());
       }
}

[qq_33282742]

//User类
public class User {
	
	private int id;

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}
}

//Main类
public class Main{
  
  public User demo(){
  	 User user = new User();
       user.setId(1);
		return user;
  }
}

//Sys类
public class Say {
	public static void main(String[] args) {
		User user = new User();
		Main main = new Main();
		//调用Main中的demo方法  给user的Id赋值
		user = main.demo();
		//获取Main类中User的Id 值
		int id = user.getId();
		
		System.out.println("得到的Main方法中赋值的Id为："+id);
	}
}