# 20155308 2016-2017-2《Java程序设计》课堂实践项目 5月17日
20155308 2016-2017-2《Java程序设计》课堂实践项目 5/17
本次因为git出现了问题，所以没有按时提交我的代码
问题一
-
在IDEA中对P145 MathTool.java 使用JUnit进行单元测试，测试用例不少于三个，要包含正常情况，边界情况。
-
提交测试代码和运行结果截图，加上学号水印，提交码云代码链接。
-MathTool代码：
public class MathTool {
public static int sum(int... numbers) {
int sum = 0;
for(int number : numbers){
sum += number;
}
return sum;
}
}
测试代码：
import junit.framework.TestCase;
import org.junit.Test;
import static org.junit.Assert.*;
public class MathToolTest extends TestCase {
int[] numbers1 = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
int[] numbers2 = {0};
int[] numbers3 = {1,2,3,4,55};
@Test
public void testSum() {
assertEquals(55, MathTool.sum(numbers1));
assertEquals(0, MathTool.sum(numbers2));
assertEquals(65, MathTool.sum(numbers3));
}
}
代码编程中的问题
本次考察主要是注意边界值的测试，我进行了三组测试用例，分别对范围内的值和范围外的值进行了测试。
问题二
-
设计并实现一个Book类，定义义成Book.java,Book 包含书名，作者，出版社和出版日期，这些数据都要定义getter和setter。定义至少三个构造方法，接收并初始化这些数据。覆盖（Override）toString方法，返回良好的含有多行的书的描述信息。覆盖equals方法，书名，作者，出版社和出版日期完全一致才说明两本书是一样的。
-
创建一个测试类Bookshelf, 其中的main方法创建并更新几个Book对象。Book至少包含三本本学期教材内容。
-
Book.java
public class Book {
private String name;
private String author;
private String printer;
private int date;
public Book(String name, String author, String printer, int date) {
this.name = name;
this.author = author;
this.printer = printer;
this.date = date;
}
public Book() {
this("book","author","printer",20170517);
}
public Book(int date) {
this("book","author","printer",date);
}
public String getName() {
return name;
}
public String getAuthor() {
return author;
}
public String getPrinter() {
return printer;
}
public int getDate() {
return date;
}
public void setName(String name) {
this.name = name;
}
public void setAuthor(String author) {
this.author = author;
}
public void setPrinter(String printer) {
this.printer = printer;
}
public void setDate(int date) {
this.date = date;
}
@Override
public String toString() {
return "Book{" +
"name='" + name + '\'' +
", author='" + author + '\'' +
", printer='" + printer + '\'' +
", date=" + date +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Book book = (Book) o;
if (date != book.date) return false;
if (name != null ? !name.equals(book.name) : book.name != null) return false;
if (author != null ? !author.equals(book.author) : book.author != null) return false;
return printer != null ? printer.equals(book.printer) : book.printer == null;
}
}
- Bookshelf
public class Book {
private String name;
private String author;
private String printer;
private int date;
public Book(String name, String author, String printer, int date) {
this.name = name;
this.author = author;
this.printer = printer;
this.date = date;
}
public Book() {
this("book","author","printer",20170517);
}
public Book(int date) {
this("book","author","printer",date);
}
public String getName() {
return name;
}
public String getAuthor() {
return author;
}
public String getPrinter() {
return printer;
}
public int getDate() {
return date;
}
public void setName(String name) {
this.name = name;
}
public void setAuthor(String author) {
this.author = author;
}
public void setPrinter(String printer) {
this.printer = printer;
}
public void setDate(int date) {
this.date = date;
}
@Override
public String toString() {
return "Book{" +
"name='" + name + '\'' +
", author='" + author + '\'' +
", printer='" + printer + '\'' +
", date=" + date +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Book book = (Book) o;
if (date != book.date) return false;
if (name != null ? !name.equals(book.name) : book.name != null) return false;
if (author != null ? !author.equals(book.author) : book.author != null) return false;
return printer != null ? printer.equals(book.printer) : book.printer == null;
}
}
