handle null pointer exception in java code example

Example 1: how to use a try catch for a null pointer exception in java

int n;//decalred as null
n = n + 1;//null pointer exception
/////////////////////////////////////
int n = 5;
n = n + 1;//no null pointer exception

Example 2: exception is null

//Bug with VS: Exception e == null
//Happens when multiple catch variables are the same
//an example of the solution:
try
{
    // do something
}
catch (WebException webEx) // using a variable named 'webEx' for this catch
{
    Logger.Log("Error while tried to do something. Error: " + webEx.Message); // <-
}
catch (Exception ex) // using a DIFFERENT variable for this one
{
    Logger.Log("Error while tried to do something. Error: " + ex.Message);
}

Example 3: null pointer exception method

public class MainClass {

    public static void main(String[] args) {
        anotherTest();
        test();
    }
    public static void test() {
        System.out.println("Printed from the test method.");
    }
    public static void anotherTest() {
        System.out.println("Printed from the anotherTest method.");
    }
}