继承学习笔记

public class Fruits {

private String name;

private String color;

private String shape;

public Fruits() {
    
    super();
    System.out.println("水果父类空参构造。。。");
}

public Fruits(String name, String color, String shape) {
    super();
    this.name = name;
    this.color = color;
    this.shape = shape;
    System.out.println("父类水果有参构造。。。");
}

public void grow() {
    System.out.println("父类水果成长。。。");
}

public static void smell() {
    System.out.println("父类水果散发香味。。。");
}

private void privateMethod() {
    System.out.println("父类水果私有方法。。。");
}

public String getName() {
    return name;
}

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

public String getColor() {
    return color;
}

public void setColor(String color) {
    this.color = color;
}

public String getShape() {
    return shape;
}

public void setShape(String shape) {
    this.shape = shape;
}

@Override
public String toString() {
    return "Fruits [name=" + name + ", color=" + color + ", shape=" + shape + "]";
}

}

public class Apple extends Fruits {

private String name;

private String color;

private String shape;

public Apple() {
    
    super();
    System.out.println("水果子类空参构造。。。");
}

public Apple(String name, String color, String shape) {
    super(name, color, shape);
    this.name = name;
    this.color = color;
    this.shape = shape;
    System.out.println("子类水果有参构造。。。");
}

public void grow() {
    super.grow();
    System.out.println("子类水果成长。。。");
}

public static void smell() {
    System.out.println("子类水果散发香味。。。");
}

private void privateMethod() {
    System.out.println("子类水果私有方法。。。");
}

public String getName() {
    return name;
}

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

public String getColor() {
    return color;
}

public void setColor(String color) {
    this.color = color;
}

public String getShape() {
    return shape;
}

public void setShape(String shape) {
    this.shape = shape;
}

@Override
public String toString() {
    return "Apple [name=" + name + ", color=" + color + ", shape=" + shape + "]";
}

public static void main(String[] args) {
    
    Fruits f = new Fruits("香蕉", "黄色", "长的");
    
    Fruits a = new Apple();
    
    Fruits a1 = new Apple("苹果", "红色", "圆形");
    
    System.out.println(a1);
    
    a.grow();
    
    a1.grow();
    
    a.smell();
    
    f.smell();
}

}
运行结果：

父类静态方法不能被子类静态方法覆盖