Loops in Java for-for-each-while-do-while Easy examples II Java II Core Java II Automation

In this session you will learn how to use loops in java
you will learn about, for, for each , while, do while

You can see below syntax and examples for reference

Syntax:
for loop
===========

for(initialization;condition;increment/decrement)
{
//statements;
}

o/p:
============
*
* *
* * *
* * * *
* * * * *

for-each
===============

Syntax :
========
for(Type var:array)
{
//statements
}


while

=====
while(condition)
{

//statements
}

Until the condition is false the while loop is repeated

do-while
==============
// Loop is executed atleast once before checking the condition, and the loop is executing until the condition becomes false
do
{
//statements

}while(condition);


Example Programs for practise
================================
package controlstatements;

public class forLoop_example
{
public static void main(String args[])
{
System.out.println("For loop example ");

System.out.println("Example 1 - Normal for loop" );
int i;
for(i=1;iLT=10;i++)
{
System.out.println("i value is : " + i );
}

System.out.println("Example 2 - Nested for loop" );
for (int j=1;jLT=5;j++)
{
for(int k=1;kLT=j;k++)
{
System.out.print("* ");

}
System.out.println();
}
System.out.println("Example 3 - for each " );
//for-each example
int a[]= {1,2,3,4,5};

for(int z:a)
{
System.out.println(" Array value is : " + z);
}

}
}

while and do while example
===================
package controlstatements;

public class while_dowhile_example
{
public static void main(String argsp[])
{
System.out.println("While loop example ");

int i=1;
while(iLT=10) // unitl the condition is true, the while loop is repeated
{
System.out.println("i value is : " + i);
++i;
}


System.out.println("do while Example ..."); // do while loop is executed atleast once, before checking the condition
int j=1;
do
{
System.out.println(" j value is : " + j);
++j;
}while(jLT=10);

System.out.println("For loop example ");
int k;
for(k=1;kLT=10;k++)
{
System.out.println("k value is : " + k );
}
}
}