10 common mistakes people make in Java — Part 2
This is the second article about common mistakes in Java. Let’s see the next 5 mistakes people make in Java. The first 5 are in the article below.
Below the first 5 common mistakes people make in java.
Let’s see the next 5!
6 — Confusing variable assignments with variable definitions
I will be brief.
int a = 3;
is different from:
a = 3;
The first line is a definition of a new variable called ‘a’ with the value ‘3’ stored in memory. The second line is a new variable assignment to the already existing variable called ‘a’. If you write:
int a = 3;
again, in the second line, the compiler with stop you with an error message.
Pay attention to the meaning of variable declaration, definition and assignment. They are three…