Looping Statements

 Looping Statements or Iterative Statements

• These are used to run the set of statements repeatedly.
• Here the statements run repeatedly until the given condition is false.
• We need to write a proper condition so that the loop runs finite number of times.

Types of loops:

1. while
2. do-while
3. for
4. foreach

1)while loop:

• Here the loop executes until the given condition is false.
• The Initialization / declaration can be done at anywhere before the loop.

Syntax:

while(condition){

//statements which are needed to be execute

Increment/Decrement;

}

2)do-while loop:

• Here the statements are executes atleast one time , even the given condition is false.
• It is exit control loop whereas for,while are entry control loops.

Syntax:

do{

//statements which are needed to be execute

}while(conditon);

3)for loop:

• Here the number of Iterations can be known.
• Here the initialization , Declaration , Condition , Increment / Decrement are present a single place.
• We can place multiple Declarations , Increments / Decrements by palcing , (camma).

Syntax:

for(initialization/Declaration ; condition ; Increment/Decrement){

//statements which are needed to be execute repeated times

}

4)foreach loop:

• It is used on objects.
• Here the values contain all values inside the object for each iteration.
• This can be used in arrays,lists...

Syntax:

for(variableName : objectName){

//statements which are need to be execute

}