Hello
guys today I will tell you something about loops
used in java for repetitions. Suppose you have to print your name 100 times
on the output screen. Then it would be little cumbersome to use System.out.println(“My name is XYZ”); 100 times so it could achieved easily using
loops.
Java
has three kinds of loops:-
Ø for
loop: this
loop is used when we know the no. of repetitions to be done. for loop has three
statement 1.instialisation 2.condition
3.updation.
Syntax : for(initialization;condtion;updation)
{
//Statements to be executed
}
Example :
for(i=1;i<=100;i++)
{
System.out.println(“My name is XYZ”);
}
This
statement will print ypu name for 100 times.
Ø while
loop: this
loop can also be used for above task but it is generally used when we do not
know the number of repetitions.
Syntax : while(condition)
{
//Statements to be executed
}
Example: int i=1;
while(i<=100)
{
System.out.println(“My name is XYZ”);
i++;
}
Ø do-while
loop: this
loop is used when need to execute any statement atleast one time and further
repetitions depend upon some condition.
Syntax: do
{
//Statements to be executed
}while(condition);
If
we use do-while loop for repetitions then first compiler will execute the
statement written inside the do braces without checking any conditions after
that further repetitions would be carried on if the condition present inside
the while part is true.
Example:
int i=1;
do
{
System.out.println(“My name is XYZ”);
i++;
}while(i<=99);
PLEASE SHARE IT ON FACEBOOK,TWITTER AND OTHER SOCIAL NETWORKS AND RECOMMEND YOUR FRIENDS TOO.
Kishan Agarwal
Please Share
Tweet
No comments:
Post a Comment