Using try and catch in Java…

Example : TryDemo

import java.io.*;
class TryDemo
{
public static void main(String args[])
{
int d=0;
int a;
try
{
a=42/d;
System.out.println("This will not be printed");
}
catch(ArithmeticException e)
{
System.out.println("Division by Zero");
}
System.out.println("After catch statement");
}
}

Multiple catch clauses in Java…

Example : MultiCatch

import java.io.*;
class MultiCatch
{
public static void main(String args[])
{
try
{
int a=args.length;
System.out.println("a="+a);
int b=42/a;
int c[]={1};
c[42]=99;
}
catch(ArithmeticException e)
{
System.out.println("Exception Occurred:"+e);
}
catch(ArrayIndexOutOfBoundsException e)
{
System.out.println("Exception Occured:"+e);
}
System.out.println("After try/catch blocks.");
}
}

Throw in Java…

Example : ThrowDemo

import java.io.*;
class ThrowDemo
{
	public static void main(String[] args) throws Exception
	{
		int number=20;
		try
		{
			if(number >10)
			{
			throw new Exception("Maximum Limit is 10");
			}
			else
			{
			number=Integer.parseInt(args[0]);		
			}
		}
		catch(Exception e)
		{
		              System.out.println("Exception has been Occured"+e.toString());
		}
		finally
		{
			System.out.println("This is the Last Statement");
		}
	}
}

Finally in Java…

Example : FinallyDemo

import java.io.*;
class FinallyDemo
{
static void procA()
{
try
{
System.out.println("inside procA");
throw new RuntimeException("demo");
}finally
{
System.out.println("proA's finally");
}
}
static void procB()
{
try
{
System.out.println("inside procB");
return;
}finally
{
System.out.println("procB's finally");
}
}
static void procC()
{
try
{
System.out.println("inside procC");
}finally
{
System.out.println("proC's finally");
}
}
public static void main(String args[])
{
try
{
procA();
}catch(Exception e)
{
System.out.println("Exception caught");
}
procB();
procC();
}
}