Brief Notes C Language: Instructions

This is just my note when I attended the lecture. I write this here so it will be long lasting.  :D 

[Instructions]

In C language, as well as in any other programming language, there are some types of instruction.

Assignment

Assignment instruction is used to, as its name, assign a value into a variable. This can be done these operation:

<information-name> = <expression>; <information-name> <operator> = <operand>;
The thing is, this assignment "can not" be done if information-name has a type of string / array of characters.

Conditional State
The conditional instruction is useful if there is particular state that has to be done differently from any others state.
if (<expression>) <statement>; if (<expression>) <statement> else <statement>; switch (<expression>){ case <constant-expression-1>: <statement1>; break; case <constant-expression-2>: <statement2>; break; case <constant-expression-3>: <statement3>; break; . . default: <statement>; break; }

Repeating
We can use this when we need to repeat something over and over again until it reaches the stop conditions.
while (<expression>) <statement>; do <statement> while(<expression>); for(<expression1>;<expression2>;<expression3>) <statement>;

Branching
With branching, we can jump from one 'job' into another 'job'. It can be done like these:
goto <label>; continue; break; return <expression>;
Note:
Continue can only be used inside do, for, and while iteration;
Break can only exists inside iteration or switch. This statement causes the iteration / switch be stopped.
The for goto must be placed in