Multiple Catch block in java

A try block can be followed by multiple catch blocks.lets see few rules about multiple catch blocks with the help of examples. To read this in detail, see catching multiple exceptions in java.

1. A single try block can have any number of catch blocks.

2. A generic catch block can handle all the exceptions. Whether it is ArrayIndexOutOfBoundsException or ArithmeticException or NullPointerException or any other type of exception, this handles all of them. To see the examples of NullPointerException and ArrayIndexOutOfBoundsException, refer this article: Exception Handling example programs.

3. If no exception occurs in try block then the catch blocks are completely ignored.

4. Corresponding catch blocks execute for that specific type of exception:

catch(ArithmeticException e) is a catch block that can hanlde ArithmeticException

catch(NullPointerException e) is a catch block that can handle NullPointerException

5. It is able to throw exception, which is an advanced topic and I have covered it in separate tutorials: user defined exception, throws keyword, throw vs throws.

Example

class Example1
{ 
  public static void main(String args[]){
  try{
  int a[]=new int[7];
  a[4]=30/0;
  System.out.println("First print statement in try block");
  }
  catch(ArithmeticException e){
  System.out.println("Warning: ArithmeticException");
  
  catch(ArrayIndexOutOfBoundsException e){
  System.out.println("Warning: ArrayIndexOutOfBoundsException");
  }
  catch(Exception e){
  System.out.println("Warning: Some Other exception");
  }
  System.out.println("Out of try-catch block...");
  }
}

Excepted Output

Warning: ArithmeticException
Out of try-catch block...

Lets see upcoming articles with more about on exception handling.

Happy Coding!