自定义异常-Exception -1

package com;
 

 import java.util.Scanner;
 

 public class MyExceptionTest1 {
 
  
  
   
 
  
  
   
 public static void main(String[] args) throws ChushulingException, ChushufuException {
 
  
  
   
  
  
   
 Scanner scan = new Scanner(System.in);
 
  
  
   
  
  
   
 System.out.println("请输入 被除数 a(a>=0) :");
 
  
  
   
  
  
   
 int a = scan.nextInt();
 
  
  
   
  
  
   
 if(a<0){
 
  
  
   
  
  
   
  
  
   
 throw new ChushufuException("被除数不能为-负数");
 
  
  
   
  
  
   
 }else{
 
  
  
   
  
  
   
  
  
   
 System.out.println("OK...");
 
  
  
   
  
  
   
 }
 
  
  
   
  
  
   
 System.out.println("=================");
 
  
  
   
  
  
   
 System.out.println("请输入 除数b(b!=0) :");
 
  
  
   
  
  
   
 int b = scan.nextInt();
 
  
  
   
  
  
   
 if(b==0){
 
  
  
   
  
  
   
  
  
   
 throw new ChushulingException("除数不能为 0");
 
  
  
   
  
  
   
 }else{
 
  
  
   
  
  
   
  
  
   
 System.out.println("OK...");
 
  
  
   
  
  
   
 }
 
  
  
   
  
  
   
 
  
  
   
  
  
   
 double num = a/b;
 
  
  
   
  
  
   
 System.out.println("a/b= "+num);
 
  
  
   
  
  
   
 
  
  
   
 }
 
  
  
   
 

 }
 

 package com;
 


 public class ChushufuException extends Exception {
 
  
  
   
 
  
  
   
 public ChushufuException(String msg){
 
  
  
   
  
  
   
 super(msg);
 
  
  
   
 }
 
 }
 
 package com;
 


 public class ChushulingException extends Exception {
 
  
  
  
 
  
  
  
  public ChushulingException(String msg){
 
  
  
  
   
  
  
  super(msg);
 
  
  
  
  }
 
 }