Java length vs length () explained The key difference between Java’s length variable and Java’s length () method is that the Java length variable describes the size of an array, while Java’s length () ...

Sometimes when I load my Chart It throws an exception but not every time. Cant replicate the problem properly. This is the exception : java.lang.NullPointerException: Attempt to invoke virtual method ...

Another way to size Java arrays is to provide all of the array elements at the time of initialization: // Size the Java array with a set of known values int[] arraySizeExample = new {0,1,1,2,3,5,8}; ...

Fatal Exception: java.lang.NullPointerException Attempt to invoke virtual method 'int java.lang.String.length ()' on a null object reference #14 ...