This post is a continuation of the previous video lecture on Recursion. The current post and the associated video lecture explain more on recursion in Java. We target the following problem — how to compute the summation of all the …
This article discusses the basics of recursion in Java. We will discuss the theory of recursion, how we can write a recursive method in Java, and how to trace a recursive program. We are already familiar with how to use …
This article covers details on methods. It explains why we need to use methods in our programs, how to pass data to a method using parameters, and retrieve information from it via a return statement. A method is a block …
Finding the largest and smallest numbers in an array is a common programming problem. This post describes how to write a Java program to find the largest or the smallest element in a one-dimensional array. In Java Video Lecture 16, …
A single dimensional array or a one-dimensional array can hold more than one element. Using an array, one can avoid the use of too many variables to store the same data types. As an example, a programmer can use an …
Printing the pyramid pattern of stars is a common practice in learning any programming language. In this post, we will learn how to print the pyramid pattern of stars in Java. The program output for a pyramid of ten lines …
Java do-while loop is one of the three looping techniques available with the language. The other two loops are: for loop and while loop. do-while is a little bit different than for or while loops. In the “for” or “while” …
Java has three types of loops: (1) for loop, (2) while loop, and (3) do-while loop. This post focuses on while loops in Java. In the video-lecture associated with this post, we compare side-by-side for loops and while loops. While …
As stated in the previous video lecture, nested loops refer to the repetition of another repeated task. The nested loops we discussed in the last lecture were not dependent on each other in determining how many times a loop should …
Nested looping refers to a loop inside another loop. Many applications require to loop over a repeated task. Nested looping is a solution to aid such repetitive tasks. As an example, consider printing ten lines on the terminal, where each line contains twenty asterisks, as shown below.