Java throw keyword

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• When we want to throw an exception explicitly, then we should use throw keyword.
• We can throw either checked or unchecked exception in java by throw keyword. The throw keyword is mainly used to throw customized exception(exception defined by the user).
• The general form to declare throw an exception is : throw new exception class name;
• For example, throw new NullPointerException("Demo");

Let's see an example;

Example

class ThrowDemo
{ 
	static void validate(int income)
	{
		if(income<30000)
		throw new ArithmeticException("not able to get loan"); 
		else
		System.out.println("eligible for getting loan");
	}
	public static void main(String args[])
	{
		validate(18000);  
	}
}

Output

Exception in thread "main" java.lang.ArithmeticException: not able to get loan
at ThrowDemo.validate<ThrowDemo.java:6>
at ThrowDemo.main<ThrowDemo.java:12>

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