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Previously, you learnt about if statement. The syntax was: if (condition) { //This block will be executed if the condition is true } Adding else at the end of the if block will give a task to execute if the condition is false. Using else after if looks like: if (condition) { //This block will … Read more if else Statement (Lesson-11)

Conditional statements are used to perform different actions based on different conditions. The if statement is one of the most frequently used conditional statements. It is given a condition and if that condition is true, the block of code inside the if statement is executed otherwise, it is not executed. Important term: Block of code: … Read more Decision Making (If statement) Lesson 10

Java provides many different methods to get input from the user. The one we are going to study here is by using the Scanner class. The first thing we will have to do is to import the scanner class. To import the scanner class, you will have to write the code at the place you … Read more Getting input (Lesson-9)

This is our third lesson on operators. In this lesson we are going to study about logical operators, relational operators and and the conditional operator. Logical Operators: Logical operators are applied on Boolean values. Remember that Boolean value is either true or false. We studied about Boolean variables in the variables lesson. Following are the … Read more Operators Part-3 (Lesson 8)

You studied about some operators in java in the previous lesson. Some more are here. Compound assignment operators: Let’s suppose a statement a=a+3; In mathematics, it does not make sense, but in programming, it works. It means that you are increasing the value of a by 3. Similarly consider the following statement: a=a-53; It also … Read more Operators Part-2 (Lesson 7)

Operators are used to perform operations on values. The concept of operators is very simple. First, we are studying mathematical operators. Following mathematical operators are available in java: Addition (+) Subtraction (-) Multiplication (*) Division (/) Modulo (%) Addition: I won’t tell you what addition is. Subtraction: Same as above. Multiplication and Division: Modulo: The … Read more Operators Part-1 (Lesson 6)

In the previous lesson you learnt how to declare a variable. The general format was: DataType variableName ; We are going to discuss about different Data Types in java. int The int data type is used to store integers from -2147483648 to 2147483647. This will be our most commonly used data type. We learnt about int data … Read more Data Types (Lesson 5)

The code you write as a program is a series of steps that a computer can follow to give the solution to a particular problem. During this processing done by the computer, at some stages, you find the need to store some data temporarily to process it later. You might use it to store the … Read more Variables (Lesson 4)

Previously, you installed NetBeans and wrote your first program. Did you notice these lines of code?  These are called comments. Why are comments used? Comments are basically used to add description to your code_any kind of description. They are actually not executed. They do not have any effect on how the program works. They only … Read more Comments (Lesson 3)

Done setting up the Netbeans IDE? Ready to code? Here’s our first program in Java. To start, first we will have to  create a new project. 1. Select File >> New Project 2.  In Categories section, select Java and in Projects section, select Java Application and click on Next. 2. In the project name category, … Read more First program (Lesson 2)