Java Tutorial

Scanner nextfloat Java As the name of the method says, using this method, we can take some float type user input. package com.company;import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner scanner = new Scanner(System.in);float floatdata = scanner.nextFloat();System.out.println(floatdata);}} So, we get the float data as input from the user, and then we output whatever […]

Taking integer input (nextInt method) Here is a simple program, in which we are taking the input from the user. In this program, we are going to take an integer number as our input. Have a look at this program. You can easily understand this program. Also, remember that we are taking user input, so

Scanner Class Java Well, generally when we write some program, the general flow is something like this – You give some input, the input is processed, and then you receive some output. This is what usually happens. Let’s take the example of adding two numbers. The flow goes like we take two numbers for adding,

Data type casting in java Well, data type casting refers to converting the data from one type to some other type(well, this is of course if the data is convertible). There are two types of type casting available. One is implicit(widening), in which we have to do nothing, and then another is explicit(manual), in which

Java Variables We have become familiar with what data is, and what are the different types of data that we can have. So, now, it’s important for us to know that there can be situations in which we might need to store whatever data we use inside the program. For this purpose, we are going

Java Data Types Well, at a very basic level, we are dealing with three basic things, which include giving input some data, processing some data, and then having some output. We can relate this thing with several examples, but let’s have an example of an ATM. What is the procedure for withdrawing money from an

Comments in Java Well, a comment is something that is going to be ignored. This means that whatever comment is there in the program, is going to be ignored. We usually write comments when we have to explain what some line of code does, or if we want some instruction in our program, but we

Keywords in Java Well, keywords are such words, which have some special meaning, and are used for some special purpose. These are not used anywhere else, other than where they are meant to be. For example, let’s consider the example of a doctor. Well, we have a cardiologist(related to the heart), a dentist(related to teeth

How to execute a java program without using an IDE To use the terminal, execute the following commands into the terminal. First of all, let’s make sure that our terminal is in the right location(where we need to execute the program) The first instruction on the terminal would be – javac ProgramName.java In the above

Syntax of a Java Program Well, the syntax is nothing but a particular structure of statements that follows inside a program. In short, you can say that syntax is like some structure of a program. Not following the program syntax can result in compilation failures. So, we are now going to see the syntax of