Learn Java Tutorial for Beginners, Part 9: For Loops

This time how to use 'for' loops in Java, as well as looking briefly at format specifiers for strings.
What is for loop in java?
The Java for loop is a control flow statement that iterates a part of the programs multiple times. If the number of iteration is fixed, it is recommended to use for loop.
When to use it?
If the number of iteration is fixed, it is recommended to use for loop.
Syntax :
for(init ; condition; incr/decr)
{
// code to be executed
}
There are three types of for loops in java and they are:
Simple For Loop
For-each or Enhanced For Loop
Labeled For Loop
Java Simple For Loop:
A simple for loop is the same as C/C++. We can initialize the variable, check condition and increment/decrement value. It consists of four parts:
Initialization: It is the initial condition which is executed once when the loop starts. Here, we can initialize the variable, or we can use an already initialized variable. It is an optional condition.
Condition: It is the second condition which is executed each time to test the condition of the loop. It continues execution until the condition is false. It must return boolean value either true or false. It is an optional condition.
Statement: The statement of the loop is executed each time until the second condition is false.
Increment/Decrement: It increments or decrements the variable value. It is an optional condition.
Java Nested For Loop :
If we have a for loop inside the another loop, it is known as nested for loop. The inner loop executes completely whenever outer loop execute
Java for-each Loop :
The for-each loop is used to traverse array or collection in java. It is easier to use than simple for loop because we don't need to increment value and use subscript notation.
Syntax for for-each loop:
for(Type var:array)
{
//code to be executed
}
It works on elements basis not index. It returns element one by one in the defined variable.
PLAYLIST LINK OF THIS COURSE:
https://www.youtube.com/playlist?list=PLnBrF3GPxJizc0mxNLdtorcrfC1fxBScb
To download JDK visit:
https://www.oracle.com/java/technologies/javase-downloads.html#javasejdk
To download Java:
https://www.java.com/en/download/
Installing Java Guide:
https://java.com/en/download/help/download_options.xml
Installation guide for Eclipse:
https://www.ntu.edu.sg/home/ehchua/programming/howto/EclipseJava_HowTo.html
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