TypesOfExceptions.java

import java.io.FileNotFoundException;

/**
 * Most common checked and unchecked exceptions
 * https://stackoverflow.com/questions/1263128/most-common-checked-and-unchecked-java-exceptions
 */

class ExceptionExample {
    //This is throwing (possibility of throwing) checked exception
    void sampleMethod() throws FileNotFoundException {
        System.out.println("I'm throwing FileNotFoundException");
    }

    //This is throwing unchecked exception
    void sampleMethod1() throws NullPointerException {
        System.out.println("I'm throwing NullPointerException");
    } 
}


public class TypesOfExceptions {
    public static void main (String[] args) {
        ExceptionExample ex = new ExceptionExample();

        //Calling method which can throw Checked exception needs to be wrapped in a try/catch block. So this will give compile time error.
        // ex.sampleMethod();

        //Calling method which can throw unchecked exception can be called directly.
        ex.sampleMethod1();

        try {
            ex.sampleMethod();
        } catch (FileNotFoundException e) {
            //Don't swallow exception with empty catch. Log it!
            System.out.println(e.toString());
        }
    }
}