从重写子类方法中调用超类方法

public class ParentClass {
    public void print() {
        System.out.println("ParentClass");
    }
}

public class ChildClass extends ParentClass {
    @Override
    public void print() {
        super.print(); // 调用父类的print方法
        System.out.println("ChildClass");
    }
}

public class Main {
    public static void main(String[] args) {
        ChildClass child = new ChildClass();
        child.print();
    }
}

ParentClass
ChildClass

public class ParentClass {
    public ParentClass() {
        System.out.println("ParentClass");
    }
}

public class ChildClass extends ParentClass {
    public ChildClass() {
        super(); // 调用父类的构造方法
        System.out.println("ChildClass");
    }
}

public class Main {
    public static void main(String[] args) {
        ChildClass child = new ChildClass();
    }
}

ParentClass
ChildClass

public class ParentClass {
    public static void print() {
        System.out.println("ParentClass");
    }
}

public class ChildClass extends ParentClass {
    public static void print() {
        super.print(); // 调用父类的静态方法
        System.out.println("ChildClass");
    }
}

public class Main {
    public static void main(String[] args) {
        ChildClass.print();
    }
}

ParentClass
ChildClass