For loop in Java language with example

Java has three types of basic loops

in this post, we will learn how to functioning for loop in java language

The for loop used to evaluate and execute the set of Java statements repeatedly, until the test condition is false of the java program.
The for loop executes program when the Boolean expression evaluates and the condition is satisfied.

for loop consist of three statements which generally use

• initialization statement
• boolean expression (true / false)
• increment or decrement statement (+/_)

for loop flowchart

 

Example of for loop

example of for loop here

Explanation of for loop

 

• The loop  begins with initialization part it is executed only once
• Then check the test expression, boolean expression may return true/false when boolean expression is true, codes inside the body of for loop is executed.
• Then control goes to increment part or decrement part and update statements is executed
• Test expression of for loop evaluates on each iteration until the boolean expression returns false.
• When the test expression is returned to false, for loop is terminated

for loop Example
Example 1

 this program display 1 to 10 natural number

class forloop{
public static void main(String args[]){

for(int x=0;x<=10; x++)
{
System.out.print(x); // print in same line because use print(x);
}
}

}

out put

Example 2

This program display first ten square number, using for loop

Output

1
4
9
16
25
36
49
64
81
100

Infinite for loop

If you use two semicolons (;;) in the for loop, it will be infinitive for loop

Output

This is infinite for loop
This is infinite for loop
This is infinite for loop
This is infinite for loop
This is infinite for loop
This is infinite for loop
This is infinite for loop

Ctr+c – control the flow

Output
1
2
3
4
5
6
7
8
9
10
…
…
…Ctr+c- to exit from the flow