How to use Java throws statement

Description

If a method wants to throw an exception, it must specify this behavior.

Syntax

This is the general form of a method declaration that includes a throws clause:


type method-name(parameter-list) throws exception-list 
{ 
// body of method 
}

exception-list is a comma-separated list of the exceptions that a method can throw.

Example


public class Main {
  static void throwOne() throws IllegalAccessException {
    System.out.println("Inside throwOne.");
    throw new IllegalAccessException("demo");
  }//from  w  w  w.  j a  v  a 2 s  . co m

  public static void main(String args[]) {
    try {
      throwOne();
    } catch (IllegalAccessException e) {
      System.out.println("Caught " + e);
    }
  }
}

The code above generates the following result.





















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