JAVA这个构造方法的应用对吗？

Question

如题所述

Answer 1

前面的id和age加上this和.
private int id;
private int age;

public Test(int id, int age) {
this.id = id;
this.age = age;
}

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

public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}

@Override
public String toString() {
return "Test{" +
"id=" + id +
", age=" + age +
'}';
}

public static void main(String[] args) {
Test test = new Test(1, 20);
System.out.println(test.toString());
}