【JAVA】调用类中的属性

来源：互联网发布：js设置class属性编辑：程序博客网时间：2024/06/14 11:22

class person{    String name;    int age;    String like;        void setName(String name)    {        this.name = name;    }        void setAge(int age)    {        this.age =age;    }        void setLike(String like)    {        this.like=like;    }        void talk()    {        System.out.println( "我是：" + name + "，今年：" + age + "岁," + "喜欢：" + like );    }}public class classwork{    public static void main( String[] args )     {        person p = new person();        p.setName( "小明");        p.setAge(20);        p.setLike("音乐");                p.talk();    }}

class Book  {       String title ;      double price ;      public void printInfo()  // 书籍信息    {          System.out.println("书的名字：" + title + "，价格：" + price) ;    }}public class work2{    public static void main(String args[]) {        Book bookA = new Book() ;           Book bookB = new Book() ;        bookA.title = "程序设计" ;         bookA.price = 40.7 ;               bookB.title = "C语言" ;        bookB.price = 33.9 ;        bookB = bookA ;                    bookA.printInfo() ;        bookB.printInfo();            }}

class Books {    private String title;     private double price ;    String pub = "天天精彩出版社" ;        public Books(String title,double price)     {        this.title = title ;        this.price = price ;    }      public String getInfo()     {        return "图书名称：" + this.title + "，价格：" + this.price + "元，出版社：" + this.pub ;    }}public class work3{    public static void main(String args[])     {        Books b1 = new Books("Java开发实战经典",59.8) ;        Books b2 = new Books("Java WEB开发实战经典（基础篇）",49.9) ;        Books b3 = new Books("Android开发实战经典",68) ;        System.out.println(b1.getInfo()) ;        System.out.println(b2.getInfo()) ;        System.out.println(b3.getInfo()) ;              System.out.println("----------------------出版社改名之后-------------------------") ;        b1.pub = "每日精彩出版社" ;        b2.pub = "每日精彩出版社" ;        b3.pub = "每日精彩出版社" ;        System.out.println(b1.getInfo()) ;        System.out.println(b2.getInfo()) ;        System.out.println(b3.getInfo()) ;    }}

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