第二次作业

1.Person

package ddd;
import java.util.*;
public class Person {

	public static void main(String[] args) {
	     Scanner sc = new Scanner(System.in); 
         System.out.println("请输入你的姓名："); 
         String name = sc.next(); 
         System.out.println("请输入你的性别："); 
         String sex = sc.next(); 
         System.out.println("请输入你的年龄：");
         int age = sc.nextInt(); 
         sc.nextLine();
         System.out.println("请输入你的身份证号码：：");
         String idecart = sc.nextLine();
         System.out.println("你的信息如下：");
         System.out.println("姓名："+name+"
"+"性别："+sex+"
"+"年龄："+age+"
"+"身份证号码："+idecart);
		}

}

　　

2.Phone

package ddd;
import java.util.*;
public class Phone {
	public static void main(String[] args) {
	for(int i=0;i<3;i++) {
		Scanner sc=new Scanner(System.in);
	 System.out.println("请输入手机品牌：");
     String Phonebrand=sc.nextLine();
	 System.out.println("请输入手机型号：");
     String Phonetype=sc.nextLine();
     System.out.println("手机品牌："+Phonebrand+"手机型号："+Phonetype);

	}
	
	}
    
}

　　

3.book

package ddd;
import java.util.*;
public class book {
	public static void main(String[] args) {
	Scanner sc=new Scanner(System.in);
      String name=sc.nextLine();
      String num=sc.nextLine();
      String editor=sc.nextLine();
      String press=sc.nextLine();
      String year=sc.nextLine();
      String month=sc.nextLine();
      String day=sc.nextLine();
      String page=sc.nextLine();
      String price=sc.nextLine();
      System.out.println("书名："+name+"   "+"书号："+num+"  "+"编辑："+editor);
      System.out.println("出版社："+press+"   "+"时间："+year+"年"+month+"月"+day+"日");
      System.out.println("页数："+page+"  "+"价格："+price);
      
	}
      
      
}

　　

4.yuan

package ddd;
import java.util.*;
public class YUAN {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		double r=sc.nextDouble();
		sc.hasNextLine();
		double h=sc.nextDouble();
		sc.hasNextLine();
		double s,v;
		final double PAI=3.14;
		s=r*r*PAI;
		v=PAI*r*r*h;
		System.out.println("半径"+r+"高"+h+"底面积："+s+"体积："+v);
		

	}

}