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package iop;import java.util.Scanner;public class person { private String name; private String sex; private int idnumber; private int age; public static void main(String[]args) { String name; String sex ; double age; double idnumber; // person s1=new person(); s1.name="李四"; s1.sex="female"; s1.age=18; s1.idnumber=123456734; person s2=new person(); s2.name="张三"; s2.sex="male"; s2.age=18; s2.idnumber=431010101; System.out.println("名字"+s1.name+"性别"+s1.sex+"年龄"+s1.age+"身份证号码"+s1.idnumber); System.out.println("名字"+s2.name+"性别"+s2.sex+"年龄"+s2.age+"身份证号码"+s2.idnumber); } } 
package gvfg;import java.util.*;public class Phone1 { public Phone1() { Scanner q=new Scanner(System.in); String q1=q.nextLine(); System.out.println("手机品牌："+q1); Scanner w=new Scanner(System.in); String w1=w.nextLine(); System.out.println("手机型号："+w1); } public static void main(String[] args) { new Phone1(); }} 
package gvfg;public class PhoneTest { private String label1;private String type1;public static void main(String[] args) { //String label1; PhoneTest q1=new PhoneTest() ; q1.label1="华为"; q1.type1="荣耀3c"; PhoneTest q2=new PhoneTest(); q2.label1="小米"; q2.type1="note"; PhoneTest q3=new PhoneTest(); q3.label1="联想"; q3.type1="A3600D"; System.out.println("手机品牌: "+q1.label1+" 手机型号: "+q1.type1); System.out.println("手机品牌: "+q2.label1+" 手机型号："+q2.type1); System.out.println("手机品牌: "+q3.label1+" 手机型号："+q3.type1);}} 
package asd;import java.util.*;public class Book { public static void main(String[] args) { System.out.println("请输入书名："); Scanner q=new Scanner(System.in); String q1=q.nextLine(); System.out.println("书名："+q1); System.out.println("请输入书号："); Scanner w=new Scanner(System.in); int w1=w.nextInt(); System.out.println("书号："+w1); System.out.println("请输入主编姓名："); Scanner e=new Scanner(System.in); String e1=e.nextLine(); System.out.println("主编："+e1); System.out.println("请输入出版社："); Scanner r=new Scanner(System.in); String r1=r.nextLine(); System.out.println("出版社："+r1); System.out.println("请输入出版时间："); Scanner t=new Scanner(System.in); String t1=t.nextLine(); System.out.println("出版时间："+t1); System.out.println("请输入页数："); Scanner y=new Scanner(System.in); int y1=y.nextInt(); System.out.println("页数"+y1); System.out.println("请输入价格："); Scanner u=new Scanner(System.in); int u1=u.nextInt(); System.out.println("价格"+u1);}} package gvfg;public class BookTest {private String bookname;private int booknumber;private String auther;private String publisher;private int time;private int page;private int price;public static void main(String[] args) { BookTest q1=new BookTest(); q1.bookname="斗破苍穹"; q1.booknumber=213214343; q1.auther="天蚕土豆"; q1.publisher="起点中文网"; q1.time=2007; q1.page=500; q1.price=50; BookTest q2=new BookTest(); q2.bookname="斗罗大陆"; q2.booknumber=21332334; q2.auther="唐家三少"; q2.publisher="起点中文网"; q2.time=2009; q2.page=500; q2.price=50; System.out.println("书名: "+q1.bookname+"出版社："+q1.publisher+" 书号: "+q1.booknumber+" 作者: "+q1.auther+" 出版时间 :"+q1.time+" 页数 :"+q1.page+" 价格: "+q1.price); System.out.println("书名: "+q2.bookname+"出版社："+q2.publisher+" 书号 :"+q2.booknumber+" 作者 :"+q2.auther+" 出版时间 :"+q2.time+" 页数: "+q2.page+" 价格: "+q2.price);}} package asd;public class Cylinder {public final static float PI= 3.14f;public static void main(String[] args) { int r=5,h=6; float area; float bulk; area=r*r*PI; bulk=area*h; System.out.println("底面积为："+area+" "+"体积为"+bulk);}} package asd;import java.util.*;public class CylinderTest {public final static float PI= 3.14f; public static void main(String[] args) { System.out.println("请输入半径和高！"); float area;float bulk; Scanner q=new Scanner(System.in); int q1=q.nextInt(); Scanner w=new Scanner(System.in); int w1=w.nextInt(); area=q1*q1*PI; bulk=area*w1; System.out.println("面积为"+area); System.out.println("体积为"+bulk);}}
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