There are several ways by which characters can be extracted from String class object. String is treated as an object in Java so we can’t directly access the characters that comprise a string. For doing this String class provides various predefined methods. Character Extraction in Java charAt() charAt() method is used to extract a …
Python is a General-Purpose Programming Language or rather a Scripting Language. It was developed in 1990s by a person named Guido Van Rossum. Features of Python 1. Cross-Compiled i.e., Platform Independent or Portable 2. Interpreted 3. High-level Scripting Language 4. Open Source 5. Supports Object Oriented Features Python is an interpreted and a cross-compiled programming …
If you are an Android developer then you may know that you can run your Android projects using Android Virtual Device (AVD) or using your Android smartphone connected to the computer. As an Android programmer, I use AVD. But Android Virtual Device (AVD) takes a lot of time for starting the first time. Each time …
You can check string is alphanumeric in Java using matches() method of Matcher class. The Matcher class is provided by java.util.regex package. Below I have shared a simple Java program in which I have taken a string and I am checking it using matches() method. Java Program to Check String is Alphanumeric or not java.util.regex.*; …
We have completed the basic introduction to C++ and the language features. Hoping that you have set the environment necessary to run the C++ programs in your machine. Let us jump to write first C++ program to print hello world. Before that we need to know some basics of the language. The ISO C++ standard …
Computer can’t directly understand the program that we write in C++ language. Compiler converts the program into machine language that is understand by the computer. As we already know C++ is a compiled language. This means that every source file needs to be converted into an intermediate code called the object code with the help …
To say exactly, creating a computer program is like trying to swim an ocean. You will eventually drown if you jump into it without proper knowledge. So, the question here is, in which language you should start training to get strong grip in software field. The answer is ambiguous. You can start with any language …
A PL/SQL transaction is a collection of operations or instructions which is executed as a whole atomic unit. A transaction can access and manipulate various data items. In a multi-user environment, every user is working with his own transaction independence, keeping the database in an inconsistent format. There are few properties which every stable database …
