Java Developer

The static variable is a class level variable and it is common to all the class objects i.e. a single copy of the static variable is shared among all the class objects.
A static method manipulates the static variables in a class. It belongs to the class instead of the class objects and can be invoked without using a class object.

The difference between for loop and while loop is that in for loop the number of iterations to be done is already known and is used to obtain a certain result whereas in while loop the command runs until a certain condition is reached and the statement is proved to be false.

The do...while loop in C programming checks its condition at the bottom of the loop. The do...while loop is similar to a while loop, except the fact that it is guaranteed to execute at least one time.

Syntax
The syntax of a do...while loop in C programming language is −

do {
statement(s);
} while( condition );

The conditional expression appears at the end of the loop, so the statement(s) in the loop executes once before the condition is tested.