20175312 2018-2019-2 《Java程序设计》第6周课下选做——类定义

20175312 2018-2019-2 《Java程序设计》第6周课下选做——类定义

设计思路

1.我觉得Book其实就是一个中转的作用，由测试类Bookself通过Book输入数据，然后在验证通过后再取出。

2.在Book.java中储存测试类中输入的数据，然后验证信息是否一样，一样则输出，否则就返回false。

测试代码

• Bookself.java

public class Bookself {

public static void main(String[] args) {

    Book book1 = new Book("Java学习笔记", "zzz", "p", 2016);
    Book book2 = new Book("汇编", "xxx", "h", 2016);
    Book book3 = new Book("数据结构与算法", "www", "k", 2015);

    System.out.println(book1.toString());
    System.out.println(book2.toString());
    System.out.println(book3.toString());
}

}

• Book.java

class Book {

String name, editor, publisher;

int date;

public Book(String name, String editor, String publisher, int date) {
    this.name = name;
    this.editor = editor;
    this.publisher = publisher;
    this.date = date;
}

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

public void setEditor(String editor) {
    this.editor = editor;
}

public void setPublisher(String publisher) {
    this.publisher = publisher;
}

public void setDate(int date) {
    this.date = date;
}

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

public String getEditor() {
    return this.editor;
}

public String getPublisher() {
    return this.publisher;
}

public int getDate() {
    return this.date;
}

public String toString() {
    return "Book [书名=" + name + ", 作者=" + editor + ", 出版社=" + publisher + ", 出版日期=" + date + "]";
}

public boolean equals(Object obj) {
    if (!(obj instanceof Book)) {
        return false;
    }
    Book book = (Book) obj;
    if (!getName().equals(book.getName())) {
        return false;
    }
    if (!getEditor().equals(book.getEditor())) {
        return false;
    }
    if (!getPublisher().equals(book.getPublisher())) {
        return false;
    }
    if (!(getDate() == book.getDate())) {
        return false;
    }
    return true;
}

}

运行结果截图

码云链接

• Bookself.java——https://gitee.com/dky20175312/dky_20175312_warehouse_1/blob/master/20175312/zuoye6/Bookself.java

• Book.java——https://gitee.com/dky20175312/dky_20175312_warehouse_1/blob/master/20175312/zuoye6/Book.java