用Java写一个类

public class XieY {
   public  String name;
   public  String hobby;
   private int age;
    public String classNo;
    public XieY(String name,String hobby,int age,String classNo){
        this.age=age;
        this.classNo=classNo;
        this.hobby=hobby;
        this.name=name;
    }
    public void geName(){
        System.out.println("大家好！：我是"+name+"年龄"+age+"爱好"+hobby+"班级"+classNo);
    }
    public String distan(){
        return  "大家好！：我是"+name+"年龄"+age+"爱好"+hobby+"班级"+classNo;

    }
    public static void main(String[] args){
        XieY sc=new XieY("张三","篮球",18,"21213");
        sc.geName();
        System.out.println(sc.distan());


    }
}