JAVA exercise 10 and java exercise

JAVA exercise 10 and java exercise

Exercise 12

 

package cn.ch.w;public abstract class Person {    private String name;    private int age;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    public Person(String name, int age) {        this.name = name;        this.age = age;    }    public Person() {        super();    }    public String toString() {        return "Person [name=" + name + ", age=" + age + "]";    }    public abstract String speak();}

Package cn. ch. w; public class Student extends Person {private float score; public Student (String name, int age, float score) {super (name, age); this. setScore (score);} public String speak () {return "student says --> my name:" + super. getName () + "" + super. getAge () + "years old" + this. score + "score";} public float getScore () {return score;} public void setScore (float score) {this. score = score ;}}

Package cn. ch. w; public class Worker extends Person {private float salary; public Worker (String name, int age, float salary) {super (name, age); this. setSalary (salary);} public String speak () {return "said --> my name:" + super. getName () + "" + super. getAge () + "years old" + this. salary + "";} public float getSalary () {return salary;} public void setSalary (float salary) {this. salary = salary ;}}

Package cn. ch. w; public class DemoStudentWorker {public static void main (String [] args) {Person student = new Student ("he", 3, 90.1f ); worker worker = new Worker ("it", 2, 25.5f); print (student. speak (); print (worker. speak ();} private static void print (String speak) {System. out. println (speak );}}