JavaSE8基础 继承一个抽象类的简单示例

os ：windows7 x64
    jdk：jdk-8u131-windows-x64
    ide：Eclipse Oxygen Release (4.7.0)
    
    
代码：

abstract class Person {
	//姓名
	private String name;
	//年龄
	private int age;

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

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

	public Person(){};
	public Person(String name,int age) {
		this.name = name;
		this.age = age;
	}

	public abstract void sayHello();
}

class Javaer extends Person {
	public Javaer(){};

	public Javaer(String name,int age) {
		super(name,age);
	}

	public void sayHello() {
		System.out.println(getName() + "hello java");
	}
}

class PHPer extends Person {
	public PHPer(){};

	public PHPer(String name,int age) {
		super(name,age);
	}

	public void sayHello() {
		System.out.println(getName() + "hello php");
							//这里要是写name，他会提示访问不到的，因为在父类中name是private修饰的
	}
}

class Demo {
	public static void main(String[] agrs) {
		Javaer j = new Javaer("给最苦",21);
		j.sayHello();

		Person p = new PHPer("给最苦",21);
		p.sayHello();
	}
}

结果：