JAVA实验——家族的姓氏

JAVA中类与对象的使用之家族的姓氏

FamilyPerson.java

package lab2;

public class FamilyPerson {

    static String surname;
    String name;

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

    public static void setSurname(String s) {
        surname = s;
    }

}

MainClass.java

package lab2;

public class MainClass {

    public static void main(String[] args) {
        FamilyPerson.surname = "李";
        FamilyPerson father = new FamilyPerson();
        FamilyPerson sonOne = new FamilyPerson();
        FamilyPerson sonTwo = new FamilyPerson();
        father.setName("向阳");
        sonOne.setName("抗日");
        sonTwo.setName("抗战");
        System.out.println("父亲:" + father.surname + father.name);
        System.out.println("大儿子:" + sonOne.surname + sonOne.name);
        System.out.println("二儿子:" + sonTwo.surname + sonTwo.name);
        father.setSurname("张");
        System.out.println("父亲:" + father.surname + father.name);
        System.out.println("大儿子:" + sonOne.surname + sonOne.name);
        System.out.println("二儿子:" + sonTwo.surname + sonTwo.name);
    }
}