Jun 21, 2021 · So, all the four methods are discussed below as follows: Methods: Implementation: Method 1: Using a for loop. For Loop is the most common flow control loop. For loop uses a variable to iterate through the list. Example. Method 2: Using While loop.

Jun 3, 2024 · There are several ways to iterate over List in Java. They are discussed below: Each element can be accessed by iteration using a simple for loop. The index can be accessed using the index as a loop variable. Syntax: // code block to be executed. Below is an example of this method: Complexity of the above Method:

Essentially, there are only two ways to iterate over a list: by using an index or by using an iterator. The enhanced for loop is just a syntactic shortcut introduced in Java 5 to avoid the tedium of explicitly defining an iterator.

This is a simple and easy method for adding multiple values in an ArrayList using a for loop. As in the above code, I presume the Answer as Integer. It could be String, Double, Long, etc. So, in that case, you can use next(), nextDouble(), and nextLong(), respectively. If you simply need a …

Apr 20, 2012 · Is there a short and sweet way to generate a List<Integer>, or perhaps an Integer[] or int[], with sequential values from some start value to an end value? That is, something shorter than, but equivalent to 1 the following: List<Integer> ret = new ArrayList<>(end - begin + 1); for (int i=begin; i<=end; i++) { ret.add(i); return ret; .

Jun 4, 2024 · Method 1: Using for loop. Method 2: Using while loop. Method 3: Using for each loop. Method 4: Using Iterator. Method 5: Using Lambda expressions. Method 6: Using Enumeration interface. Now it is a further additive to the article as we are done with discussing all methods that can be used to iterate over elements.

Apr 10, 2025 · In this article, we demonstrated the different ways to iterate over the elements of a list using the Java API. These options included the for loop, enhanced for loop, Iterator, ListIterator, and the forEach () method (included in Java 8).

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: Statement 1 is executed (one time) before the execution of the code block. Statement 2 defines the condition for executing the code block. Statement 3 is executed (every time) after the code block has been executed.

May 26, 2022 · To use for loop, we need the size of the collection and indexed access to its item. The list has a size () method to give the size of the list and the get () method to get an item at …

In this tutorial, we learned How to create a List of Numbers from 1 to N in Java language with well detailed examples. To create a list of numbers from 1 to N in Java, you can use a for loop to iterate from 1 to N and add each number to the list.