第一题：编写“人”及其测试类：
package person;
public class person {
String name; String sex; String age; String id;
void get(String n,String s,String a,String i)
{ name=n; sex=s; age=a; id=i; }
void show() {
System.out.println("姓名："+name); System.out.println("性别："+sex); System.out.println("年龄："+age); System.out.println("身份证号码："+id); }
public static void main(String[] args) {
person zhang=new person();
System.out.println("第一个人的信息"); zhang.name="张三"; zhang.sex="男"; zhang.age="18"; zhang.id="430101010101010101";
System.out.println("姓名："+zhang.name); System.out.println("性别："+zhang.sex); System.out.println("年龄："+zhang.age); System.out.println("身份证号码："+zhang.id); person li=new person(); System.out.println("第二个人的信息"); li.get("李四", "女", "18", "123456789009876543"); li.show(); } }
第二题：编写“手机”类及其测试类：
public class Phone {
String brand;
String model;
void get(String brand,String model)
{
this.brand =brand;
this.model =model;
}
void show() {
System.out.println("品牌:"+brand);
System.out.println("型号:"+model);
}
public static void main(String[] args) {
Phone Huawei=new Phone();
System.out.println("输出手机信息");
Huawei.brand="华为";
Huawei.model="荣耀3C";
System.out.println("品牌:"+Huawei.brand);
System.out.println("型号:"+Huawei.model);
Phone Lianxiang=new Phone();
System.out.println("输出手机信息");
Lianxiang.brand="联想";
Lianxiang.model ="A3600D";
System.out.println("品牌："+Lianxiang.brand );
System.out.println("型号："+Lianxiang.model );
Phone Xiaomi=new Phone();
System.out.println("输出手机信息");
Xiaomi.brand="小米";
Xiaomi.model ="note";
System.out.println("品牌："+Xiaomi.brand );
System.out.println("型号："+Xiaomi.model );
}
}
第三题：编写“书籍类”及其测试类：
public class Book { String name; String num; String author; String place; String time; int totalnum; int price;
void get(String name,String num,String author,String place,String time,int totalnum,int price) {
this.name =name; this.num =num; this.author =author; this.place =place; this.time =time; this.totalnum =totalnum; this.price =price; }
public static void main(String[] args) {
Book Yue=new Book();
Yue.name="你是人间的四月天"; Yue.num ="ISBN 978-7-80733-655-6"; Yue.author ="林徽因"; Yue.place="古吴轩出版社"; Yue.time ="2011-6"; Yue.totalnum =200; Yue.price =29; System.out.println("书名:"+Yue.name);
System.out.println( "书号:"+Yue.num); System.out.println("作者:"+Yue.author); System.out.println("出版社:"+Yue.place); System.out.println("出版时间:"+Yue.time); System.out.println("页数:"+Yue.totalnum); System.out.println("价格:"+Yue.price);
Book Xia=new Book();
Xia.name ="忽而今夏"; Xia.num="ISBN 9787505415157"; Xia.author="明前雨后"; Xia.place ="朝华出版社"; Xia.time ="2006-6"; Xia.totalnum =216; Xia.price =20; System.out.println("书名:"+Xia.name); System.out.println( "书号:"+Xia.num); System.out.println("作者:"+Xia.author); System.out.println("出版社:"+Xia.place); System.out.println("出版时间:"+Xia.time); System.out.println("页数:"+Xia.totalnum); System.out.println("价格:"+Xia.price); }
}
第四题：编写“圆柱体类”及其测试类：
public class cylinder { double r; int h; double s; double V ;
void get(double r,int h,double s,double V ) {
this.r =r; this.h =h; this.s =s; this.V =V; }
public static void main(String[] args) {
double pai=3.14; double r=2.0; double s = pai*r*r; int h=5; double V=s*h;
System.out.println("底面积:"+s); System.out.println("体积:"+V);
cylinder Circle=new cylinder();
Circle.r =2.0; Circle.h =5; Circle.s =12.56; Circle.V =62.800000000000004;
System.out.println("底半径;"+r); System.out.println("高;"+h); System.out.println("底面积:"+s); System.out.println("体积;"+V); } }