方法

 

 

public class Main {
public static void main(String[] args) {
Person ming = new Person();
ming.setName("Xiao Ming"); // 设置name
ming.setAge(12); // 设置age
System.out.println(ming.getName() + ", " + ming.getAge());
}
}

 

class Person {
private String name;
private int age;

public String getName() {
return this.name;
}

public void setName(String name) {
this.name = name;
}

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

public void setAge(int age) {
if (age < 0 || age > 100) {
throw new IllegalArgumentException("invalid age value");
}
this.age = age;
}
}

 

 

 

 

 

 方法参数

0个或任意个参数，可变参数（数组类型）