慕课java第三季-异常与异常处理：借书系统

package com.exception.booksystem;

import java.util.InputMismatchException;
import java.util.Scanner;

public class CatchError {
private int input_Int;
private String input_String;

public boolean inputInt(){
try{
Scanner sc=new Scanner(System.in);
input_Int=sc.nextInt();
return true;
}catch(InputMismatchException e){
System.out.println("命令输入错误！请根据提示输入命令！");
return false;
}
}

public int getInputInt(){
return input_Int;
}

public boolean inputString(){
try{
Scanner sc=new Scanner(System.in);
input_String=sc.next();
return true;
}catch(InputMismatchException e){
System.out.println("命令输入错误！请根据提示输入命令！");
return false;
}
}

public String getInputString(){
return input_String;
}
}
package com.exception.booksystem;

public class Find {
String[] books={"数据结构","物理","化学","生物","高数","网络"};
private String flag= null;
public boolean findBookNam(String book){
for(int i = 0;i