Java⼩⽩创建店员类，设计⼀个查询的成员⽅法，顾客咨询哪⼀类图书，店员
就返回该类图书的名。。。
package company;
PortableInterceptor.SYSTEM_EXCEPTION;
import java.util.Scanner;
public class Org
{
public static void main(String[] args)
{
System.out.println("想咨询哪⼀类图书");
Scanner sc =new Scanner(System.in);
String word = sc.nextLine();
Org org =new Org();
String shelf ="计算机";
String  yuan ="历史";
String mai ="英语";
if(word.equals(shelf))
{
c++string类型
System.out.println("C");
}else if(word.equals(yuan))
{
System.out.println("资治通鉴");
}else if(word.equals(mai))
{
System.out.println("⽕星");
}else{
System.out.println("⽆效书类");}
}
}
另外⼀种：if return 调⽤成员⽅法的参数
import java.util.Scanner;
public class BorrowABook
{
public static void main(String[] args)
{
BorrowABook book =new BorrowABook();
String a ="《Java从⼊门到精通》";
String b ="资治通鉴";
String c ="⽕星英语";
String e ="计算机";
String f ="英语";
String g ="历史";
Scanner sc =new Scanner(System.in);
System.out.println("请输⼊书籍类型");
String word = sc.nextLine();
System.out.println("答复"+ book.add(a, b, c,e,f,g,word));
}
String add(String a, String b, String c,  String e, String f, String g,String word) {
if(word.equals(e))
{
return a;
}else if(word.equals(f))
{
return c;
}else if(word.equals(g))
{
return b;
}else
{
return"⽆效书籍";
}
}
}