null pointer exception
NullPointerExceptions are exceptions that occur when you try to
use a reference that points to no location in memory (null)
as though it were referencing an object.null pointer exception
NullPointerExceptions are exceptions that occur when you try to
use a reference that points to no location in memory (null)
as though it were referencing an object.What’s null pointer exception?
First, null keyword it does not refers to any object at all.
Null keyword means no object.
null pointer excep: there is no object at all.
So you can't get access to the instance of that objecthow 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 exceptionnullpointerexception java
Integer num;
num = new Integer(10);nullpointerexception java
int x;
x = 10;Copyright © 2021 Codeinu
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