JAVA TUTORIALS FOR BEGINNER: for loop

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Java for loop used to repeat execution of statement(s) until a certain condition holds true. <code class="java geshifilter-java">for</code> is a keyword in Java programming language.

<h2>
Java for loop syntax </h2>
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<pre class="java geshifilter-java" style="font-family: monospace;">for (/* Initialization of variables */ ; /*Conditions to test*/ ; /* Increment(s) or decrement(s) of variables */) {
 // Statements to execute i.e. Body of for loop
}</pre>
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You can initialize multiple variables, test many conditions and 
perform increments or decrements on many variables according to 
requirement. Please note that all three components of for loop are 
optional. For example following for loop prints "Java programmer" 
indefinitely.

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<pre class="java geshifilter-java" style="font-family: monospace;">// Infinite for loop
for (;;) {
 System.out.println("Java programmer");
}</pre>
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You can terminate an infinite loop by pressing Ctrl+C.

<h2>
Simple for loop example in Java</h2>
Example program below uses for loop to print first 10 natural numbers i.e. from 1 to 10.

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<pre class="java geshifilter-java" style="font-family: monospace;">//Java for loop program
class ForLoop {
 public static void main(String[] args) {
 int c;
 
 for (c = 1; c <= 10; c++) {
 System.out.println(c);
 }
 }
}</pre>
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OUTPUT : 
 <img alt="Java for loop example program output" src="http://www.programmingsimplified.com/images/java/java-for-loop-example-program.png" />

<h2>
Java for loop example to print stars in console</h2>
Following star pattern is printed 
* 
** 
*** 
**** 
*****

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<pre class="java geshifilter-java" style="font-family: monospace;">class Stars {
 public static void main(String[] args) {
 int row, numberOfStars;
 
 for (row = 1; row <= 10; row++) {
 for(numberOfStars = 1; numberOfStars <= row; numberOfStars++) {
 System.out.print("*");
 }
 System.out.println(); // Go to next line
 }
 }
}</pre>
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Above program uses nested for loops (for loop inside a for loop) to 
print stars. You can also use spaces to create another pattern, It is 
left for you as an exercise. 
 
 
OUTPUT

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For loop loop program in java

Java for loop used to repeat execution of statement(s) until a certain condition holds true. for ...

JAVA TUTORIALS FOR BEGINNER

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For loop loop program in java