Sep 7, 2015 · for(j=0; j<i; j++) for(k = 0; k < words[j].length(); k++) System.out.print(" "); System.out.print(words[i]); System.out.println(); String[] words = {"cat", "cats", "test"}; int leftPaddding = 0; for(int i = 0; i < words.length; i++){ for(int j = 0; j < leftPaddding; j++) { System.out.print(" "); leftPaddding += words[i].length();

Using the first for -loop you manually enumerate through the array by increasing an index to the length of the array, then getting the value at the current index manually. The latter syntax is added in Java 5 and enumerates an array by using an Iterator instance under the hoods.

Dec 31, 2013 · The author of the code seems to practice three to four different ways of writing the for-loop, making it super-hard for me to debug. Example 1 (This is the form I like): for (int i = 0; i < x; i++) {. . //Action inside the for-loop.} Example 2 (I can understand this one): for (int i = 0; i < x; i++) //Action inside the for-loop.

When you know exactly how many times you want to loop through a block of code, use the for loop instead of a while loop: Syntax for ( statement 1 ; statement 2 ; statement 3 ) { // code block to be executed }

Programmers often refer to it as the "for loop" because of the way in which it repeatedly loops until a particular condition is satisfied. The general form of the for statement can be expressed as follows: increment) { statement(s) . When using this version of the for statement, keep in …

Apr 17, 2025 · The for-each loop in Java (also called the enhanced for loop) was introduced in Java 5 to simplify iteration over arrays and collections. It is cleaner and more readable than the traditional for loop and is commonly used when the exact index of an element is not required.

Jan 3, 2025 · Two commonly used loops are the for loop and the enhanced for loop. While they serve similar purposes, their applications and usage vary based on the scenario. Below comparison highlights the major differences between a traditional for loop and an enhanced for loop in Java. Introduced in early Java versions as a basic loop structure.

In this chapter, you’ll learn how to use while and for loops to add repetition to your code. We’ll also take a first look at String methods and solve some interesting problems. Using a while statement, we can repeat the same code multiple times: int n = 3; while (n > 0) { System.out.println (n); n = n - 1; } System.out.println ("Blastoff!");

Java loops repeatedly execute a block of code based on a specified condition. The for loop initializes, checks a condition, and updates in each iteration. The while loop checks a condition before each iteration.

Feb 16, 2025 · In this article, we’ll look at a core aspect of the Java language – executing a statement or a group of statements repeatedly using a for loop. 2. Simple for Loop. A for loop is a control structure that allows us to repeat certain operations …