用JAVA编写一个程序

用JAVA编写一个程序

public class Test {
public static void main(String[] args) {
int score = 55;   //分数
if(0>score||100 System.out.println("成绩应该在0~100之间");
return ;
}
int temp = score/10;


if(6>temp){
System.out.println("分数："+score+",等级：E");
}else if(6==temp){
System.out.println("分数："+score+",等级：D");
}else if(7==temp){
System.out.println("分数："+score+",等级：C");
}else if(8==temp){
System.out.println("分数："+score+",等级：B");
}else{
System.out.println("分数："+score+",等级：A");
}


switch (temp) {
case 10:
System.out.println("分数："+score+",等级：A");
break;
case 9:
System.out.println("分数："+score+",等级：A");
break;
case 8:
System.out.println("分数："+score+",等级：B");
break;
case 7:
System.out.println("分数："+score+",等级：C");
break;
case 6:
System.out.println("分数："+score+",等级：D");
break;
default:
System.out.println("分数："+score+",等级：E");
break;
}
}
}

import java.util.Scanner;
public class Book { private String bookname;
private String bookno;
private double bookprice;
private int bookamount;

public Book(String bookname, String bookno, double bookprice, int bookamount) { super();
this.bookname = bookname;
this.bookno = bookno;
this.bookprice = bookprice;
this.bookamount = bookamount;
}

public String getBookname() { return bookname;
}

public void setBookname(String bookname) { this.bookname = bookname;
}

public String getBookno() { return bookno;
}

public void setBookno(String bookno) { this.bookno = bookno;
}

public double getBookprice() { return bookprice;
}

public void setBookprice(double bookprice) { this.bookprice = bookprice;
}

public int getBookamount() { return bookamount;
}

public void setBookamount(int bookamount) { this.bookamount = bookamount;
}

public static void main(String[] args) { Book book = new Book("数据结构", "9787900643223", 46, 256);
System.out.println("请输入图书编号：");
Scanner sc = new Scanner(System.in);
String str = sc.nextLine();
if (str.equals(book.getBookno())) {
System.out.println("该编号对应图书的详细信息：" + book.getBookamount());
System.out.println("该编号对应图书的详细信息：" + book.getBookname());
System.out.println("该编号对应图书的详细信息：" + book.getBookno());
System.out.println("该编号对应图书的详细信息：" + book.getBookprice());
}
}
}

import java.util.Scanner;
public class Book { private String bookname;
private String bookno;
private double bookprice;
private int bookamount;

public Book(String bookname, String bookno, double bookprice, int bookamount) { super();
this.bookname = bookname;
this.bookno = bookno;
this.bookprice = bookprice;
this.bookamount = bookamount;
}

public String getBookname() { return bookname;
}

public void setBookname(String bookname) { this.bookname = bookname;
}

public String getBookno() { return bookno;
}

public void setBookno(String bookno) { this.bookno = bookno;
}

public double getBookprice() { return bookprice;
}

public void setBookprice(double bookprice) { this.bookprice = bookprice;
}

public int getBookamount() { return bookamount;
}

public void setBookamount(int bookamount) { this.bookamount = bookamount;
}

public static void main(String[] args) { Book book = new Book("数据结构", "9787900643223", 46, 256);
System.out.println("请输入图书编号：");
Scanner sc = new Scanner(System.in);
String str = sc.nextLine();
if (str.equals(book.getBookno())) {
System.out.println("该编号对应图书的详细信息：" + book.getBookamount());
System.out.println("该编号对应图书的详细信息：" + book.getBookname());
System.out.println("该编号对应图书的详细信息：" + book.getBookno());
System.out.println("该编号对应图书的详细信息：" + book.getBookprice());
}
}
}

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