PROGRAM IN JAVA FOR USER DEFINED EXCEPTION

 Program that checks for internal marks & external marks, if internal marks are greater than 40 raise the exception "internal marks are exceed", if external marks are greater than 60 exception is raised and display the message "external marks exceed"

Ude.java

package ude;

 import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import javax.security.auth.Subject;

 class MyException extends Exception {

int  a;

int b;

String s;

 MyException(int internal,int external){

a=internal;

b=external;

if ((a > 40) || (b > 60)) {

       if (a > 40){

    System.out.println("internal  marks are exceed");

    }

    if (b > 60) {

    System.out.println("external  marks are exceed");

    }

} else {

    System.out.println("NO ERROR IN THE MARKS !!!!!");

}

}

}

public class Ude {   

    public static void main(String[] args) throws IOException {

 BufferedReader br = new BufferedReader ( new InputStreamReader(System.in));

System.out.println("Enter the Subject name");

String subname=br.readLine();

System.out.println("Enter the internal Marks for the subject "+subname);

String mark1=br.readLine();

int m1=Integer.parseInt(mark1);

System.out.println("Enter the external Marks for the subject "+subname);

String mark2=br.readLine();

int m2=Integer.parseInt(mark2); 

try{

    throw new MyException(m1,m2);

} catch(Exception e){

    }

}

}

OUTPUT: