第二次作业
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1.person类
1 package Hello.第一次实训; 2 3 public class person { 4 String name; 5 String sex; 6 String age; 7 String IDcard; 8 void get(String n,String s,String a,String ID) 9 { 10 name=n; 11 sex=s; 12 age=a; 13 IDcard=ID; 14 } 15 void show() 16 { 17 System.out.println("姓名:"+name); 18 System.out.println("性别:"+sex); 19 System.out.println("年龄:"+age); 20 System.out.println("身份证号码:"+IDcard); 21 public static void main(String[] args) 22 { 23 person gong=new person(); 24 System.out.println("这个人的身份信息"); 25 gong.name="张三"; 26 gong.sex="男"; 27 gong.age="19"; 28 gong.IDcard="20180142**"; 29 System.out.println("姓名:"+gong.name); 30 System.out.println("性别:"+gong.sex); 31 System.out.println("年龄:"+gong.age); 32 System.out.println("身份证信息:"+gong.sex); 33 person 李四=new person(); 34 System.out.println("另外一个人的身份信息"); 35 李四.get("李四", "女", "17", "2018014201**"); 36 李四.show(); 37 } 38 } 39 40 41 }
2.手机类
1 package 第二次作业; 2 3 public class Phone { 4 String brand; 5 String smart; 6 void get(String brand,String smart) 7 { 8 this.brand=brand; 9 this.smart=smart; 10 } 11 void show() { 12 System.out.println("品牌:"+brand); 13 System.out.println("型号:"+smart); 14 } 15 public static void main (String[] args) 16 { 17 Phone huawei=new Phone(); 18 System.out.println("输入手机信息"); 19 huawei.brand="华为"; 20 huawei.smart="荣耀3"; 21 System.out.println("品牌:"+huawei.brand); 22 System.out.println("款号:"+huawei.smart); 23 Phone pingguo=new Phone(); 24 System.out.println("请输入手机信息"); 25 pingguo.brand="苹果"; 26 pingguo.smart="苹果7"; 27 System.out.println("品牌:"+pingguo.brand); 28 System.out.println("款号:"+pingguo.smart); 29 30 31 32 33 } 34 35 36 }
3.书籍类
1 package 第二次作业; 2 3 public class 书籍类 { 4 String name; 5 String number; 6 String author; 7 String place; 8 String time; 9 String totalnum; 10 String price; 11 void get(String name,String number,String author,String place,String time,String totalnum,String price) { 12 this.name=name; 13 this.author=author; 14 this.place=place; 15 this.time=time; 16 this.totalnum=totalnum; 17 this.price=price; 18 } 19 public static void main(String[] args) 20 { 21 书籍类 daomu=new 书籍类(); 22 daomu.name="盗墓笔记"; 23 daomu.number="2314"; 24 daomu.author="三叔"; 25 daomu.place="某某"; 26 daomu.time="2014"; 27 daomu.totalnum="300"; 28 daomu.price="39"; 29 30 书籍类 java=new 书籍类(); 31 java.name="java程序设计"; 32 java.number="34523"; 33 java.author="明日科技"; 34 java.place="清华大学出版社"; 35 java.time="2016"; 36 java.totalnum="564"; 37 java.price="59"; 38 } 39 } 40 41 42 43 44 45
4.圆柱体类
1 package 第二次作业; 2 3 public class 圆柱体 { 4 final static double PI=3.14; 5 double r; 6 double v; 7 double h; 8 double s; 9 void get(double r,double h,double s,double v) 10 { 11 this.r=r; 12 this.h=h; 13 this.s=s; 14 this.v=v; 15 } 16 public static void main(String[] args) 17 { 18 double r=4; 19 double s=PI*r*r; 20 double h=9; 21 double v=s*h; 22 System.out.println("底面积:"+s); 23 System.out.println("体积:"+v); 24 25 } 26 27 28 29 30 }
心得:
通过一个月的java学习,刚开始我觉得挺好学的,觉得一步一步好好来就不会像上个学期学c语言那么一学期都懵逼。越学到后面,记的东西就越多,到后面甚至有点弄混淆,这次作业对于我来说也挺有难度的,消耗时间多,多次出现细节错误。
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