Slip11.Write a java program to
accept Employee name from the user and check whether it
is valid or not. If it is not valid
then throw user defined Exception “Name is Invalid” otherwise display it.
import java.io.*;
class InvalidNameException extends
Exception
{}
class Slip11
{
String nm;
Slip11(String nm)
{
this.nm=nm;
}
void display()
{
System.out.println("Name =
"+nm);
}
public static void main(String a[])
throws Exception
{
BufferedReader br = new
BufferedReader(new
InputStreamReader(System.in));
System.out.println("Enter
name");
String name=br.readLine();
try
{
int len=name.length();
int flag=0;
for(int i=0;i<len;i++)
{
char ch=name.charAt(i);
if(Character.isLowerCase(ch) ||
Character.isUpperCase(ch))
{
flag=1;
}
else
{
flag=-1;
break;
}
}
if(flag==-1)
{
throw new InvalidNameException();
}
else
{
Slip11 s=new Slip11(name);
s.display();
}
}
catch(InvalidNameException e)
{
System.out.println("Name is
invalid");
}
}
}
Another Way
class NameException extends Exception
{
NameException()
{
super("Name is Invalid");
}
}
class Slip11
{
public static void main(String args[])
{
String name;
int flag=0;
try
{
Scanner sr=new Scanner(System.in);
System.out.println("Enter name" );
name=sr.next();
for(int i=0;i<name.length();i++)
{
if(Character.isDigit(name.charAt(i)))
{
flag=1;
throw new NameException();
}
}
if(flag==0)
{
System.out.println("Name is: "+name);
}
}
catch(NameException e)
{
System.out.println(e);
}
}
}
