Java Control statements - looping/iteration - for, while and do-while

Iteration statements are statements that are repeatedly executed when a given condition is evaluated as true.
Java control statements are:
Decision-making statements
- if-then, if-then-else, switch
Looping statements
- for, while, do-while
Branching statements
- break, continue, return
In this session we are going to learn about Looping statements.
Looping statements - Java has four forms of such statements each has its own purpose.
For loop
Enhance for loop
While loop
do-while loop
for loops in Java include an initializer, a condition and a counter expression.
The initializatier expression initializes the for loop and it is executed once, as the loop begins and when the condition expression evaluates to false it terminates, The counter expression increment /decrement is invoked after each iteration through the loop.
The three expressions of the for loop are optional;
An infinite loop can be created as follows when for loop contains two semi colons and nothing else.
Enhanced for loops uses built-in iterators over arrays and collections to return each item in the given collection. Every element is returned and reachable in the context of the code block. When the block is executed, the next item is returned until there are no items remaining.
In the while loop, the test is done before each iteration.
In the do ... while loop, the test is done after each iteration. the code is executed when condition returns true else exits loop.