Java面向对象编程（封装/继承/多态）实例解析

本文主要介绍了面向对象的三大特征实例解析，下面看看具体内容。

封装

封装一个Teacher和Student类

package com.hz.test;public class Teacher {  private String name;  private String majorDirection;  private String teachCourse;  private int teachAge;  public Teacher() {    super();  }  public Teacher(String name,String majorDirection,String teachCourse,int teachAge) {    this.name = name;    this.majorDirection = majorDirection;    this.teachCourse = teachCourse;    this.teachAge = teachAge;  }  public String getName() {    return name;  }  public void setName(String name) {    this.name = name;  }  public String getMajorDirection() {    return majorDirection;  }  public void setMajorDirection(String majorDirection) {    this.majorDirection = majorDirection;  }  public String getTeachCourse() {    return teachCourse;  }  public void setTeachCourse(String teachCourse) {    this.teachCourse = teachCourse;  }  public int getTeachAge() {    return teachAge;  }  public void setTeachAge(int teachAge) {    this.teachAge = teachAge;  }  public String toString() {    return "姓名=" + getName() + ", 专业方向=" + getMajorDirection()        + ", 所教课程=" + getTeachCourse() + ", 教龄=" + getTeachAge();  }}