Find the number of triangles in the given figure.

Find the number of triangles in the given figure. Answer: 14 Solution: The figure may be labelled as shown. The simplest triangles are AHG, AIG, AIB, JFE, CJE and CED i.e. 6 in number. The triangles composed of two components each are ABG, CFE, ACJ and EGI i.e. 4 in number. The triangles composed of three components each are ACE, AGE and CFD i.e. 3 in number. There is only one triangle i.e. AHE composed of four components. Therefore,...

Pattern Programming Questions - Part 2 (For Intermediate Level)

Hello there !! This is the second part of the Pattern Programming Questions Series. I recommend you to check out the First Part if you are beginner. Following Patterns Will be covered Pattern 1 A A B A B C A B C D A B C D E Pattern 2 1 2 3 4 5 1 2 3 4  1 2 3 1 2 1 Pattern 3 1 3 5 7 9 3 5 7 9 5 7 9 7 9 9 Pattern 4 * * * * *    * * * *       * * *          * *        ...

Basic File Handling in Java - Part 2

In the previous article, we discussed about two basic file handling functions in Java including searching for an existing created file in the system and creating a file using java’s inbuilt function. In this article we will cover up the other two file handling operations which includes reading from a file and writing to a file using java’s own methods. In this program we create a file by specifying a file name, open it at the same time and add...

Pattern Programming Questions - Part 1 (For Beginners)

Hello There, this is the first part of the series Pattern Programming Questions. The First Part is specially for beginners who are new to programming and have basic understanding of loops and printing functions. In this part, I will walk you through some basic patterns. Pattern Questions are not only the frequently asked questions in the interviews but also help you in developing the basic logic in programming. I will explain you some of the basic ones, and leave the rest for you to try. Following patterns will be covered: Pattern 1: ***** *****...