2016-2017-2 20155312 实验三敏捷开发与XP实践实验报告

1.研究code菜单

• Move Line/statement Down/Up：将某行、表达式向下、向上移动一行
• suround with：用 try-catch，for，if等包裹语句
• comment with line/block comment:把选中它区域变成注释
• show reformat file dialog:按照格式自动对齐
• Optimize imports：可以优化imports，去除不必要的imports
• Insert Live Template：插入一些记不起来的 Live Template 缩写
  

2.下载搭档实验二的Complex代码，加入不少于三个JUnit单元测试用例

• 代码如下：
  20155333->Complex

package exam20155333;
import junit.framework.TestCase;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* Created by dell1 on 2017/5/4.
*/
public class ComplexTest extends TestCase {
    Complex a=new Complex(1,2);
    Complex b=new Complex(-2,-1);
   Complex c=new Complex(4,-2);
    Complex d=new Complex(4,-2);
    @Test
    public void testequals(){
        assertEquals(false,a.equals(b));
        assertEquals(false,b.equals(c));
        assertEquals(true,c.equals(d));
        assertEquals(true,new Complex(1.0,2.0).equals(a));//新增测试用例1
    }

    @Test
     public void testAdd(){
        assertEquals(new Complex(-1,1),a.ComplexAdd(b));
        assertEquals(new Complex(5,0),a.ComplexAdd(c));
    }
    @Test
    public void testSubtract(){
        assertEquals(new Complex(3,3),a.ComplexSubtract(b));
        assertEquals(new Complex(-3,4),a.ComplexSubtract(c));
    }
    @Test
    public void testMultiply(){
        assertEquals(new Complex(0,-5),a.ComplexMultiply(b));
        assertEquals(new Complex(8,6),a.ComplexMultiply(c));
        assertEquals(new Complex(17,4),new Complex(3,2.5).ComplexMultiply(c));//新增2
    }
    @Test
    public void testDivide(){
        assertEquals(new Complex(0,0.5),a.ComplexDivide(c));
        assertEquals(new Complex(-0.3,-0.4),b.ComplexDivide(c));
        assertEquals(new Complex(-2,-1),b.ComplexDivide(new Complex(1,0)));//新增3
    }
}

• 截图如下：

3.完成重构内容的练习

• 代码如下：

  • 重构前代码：
    

  • 重构后代码：

package week03;

/**
 * Created by ren on 2017/3/11.
 */
class Clothes{
    private String color;
    private char size;

    public String getColor() {
        return color;
    }

    public void setColor(String color) {
        this.color = color;
    }

    public char getSize() {
        return size;
    }

    public void setSize(char size) {
        this.size = size;
    }

    @Override
    public String toString() {
        return "Color:" +  color + ",Size:" + size;
    }
}
public class Field {
    public static void main(String[] args) {
        Clothes sun = new Clothes();
        Clothes spring = new Clothes();
        sun.setColor("red");
        sun.setSize('S');
        spring.setColor("green");
        spring.setSize('M');
        System.out.println(sun.toString());
        System.out.println(spring.toString());
    }
}

• 截图如下：
  

4.Java密码学相关内容的学习

• 实现凯撒密码
  

• 文件key1.dat中生成的密钥
  

• 保存密钥编码并打印
  

• 用DESede加密
  

• 公钥私钥
  

• RSA加密
  

• 用RES解密
  

• 消息摘要
  

• 代码形成果截图：