Practical Name: Write a java program to accept a number from the user, if number is zero then throw user defined Exception “Number is 0” otherwise calculate the sum of first and last digit of a given number (Use static keyword)
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import
java.util.Scanner;
class
NumberZeroException extends Exception
{
NumberZeroException
(int f,int l)
{
System.out.println(f+l);
}
}
class PrimeNumber{
public static void main(String
args[])
{
System.out.println("Enter
a number");
Scanner sc=new
Scanner(System.in);
int a=sc.nextInt();
int first=0;
int last=0;
last=a%10;
if (a == 0) {
System.out.println("number
is zero");
} else {
try {
while (a != 0) {
first=a%10;
a=a/10;
}
throw new NumberZeroException(first,last);
} catch (Exception ex)
{
System.out.println(ex);
}
}
}
}
Output :-
