Sample java program calculator

Display Fibonacci Series. Java Basic Input and Output. To understand this example, you should have the knowledge of the following Java programming topics: Java switch Statement Java Scanner Class Example: Simple Calculator using Java switch Statement import java. Similarly, for different operators, different cases are executed. Share on:. Did you find this article helpful? Sorry about that. How can we improve it? Leave this field blank. Related Examples. Java Example Calculate simple interest and compound interest.

Java Example Check if two of three boolean variables are true. Based on this condition, the formula to be used to determine the income tax varies as stated in the above table. So, based on our input income, if checks which of the above conditions satisfy and following that formula we derive our resultant output income tax.

Using Static Method. In the above Java method, the entire logic along with input output statements were written within the main method itself. Let us consider that, in future we would like to make use of the same logic somewhere else in the code.

Under that situation the same set of statements have to be rewritten again. To avoid this, if the set of statements containing the main logic of the code discussed in the above method is placed in a separate block or what is called the static method incomeTax then, just making a function call of this method would be sufficient and by passing the arguments for which the calculation is to be made.

Thereby, making use of a static method helps us reuse a block of statements wherever required. In all the above methods used to solve this problem, we have made use of the Scanner class to read input at runtime.

Copy the code of MyFrame class from below. Simple Calculator in ASP. Here's the script for a scientific calculator. This tutorial would take you through the procedure of building a simple calculator in Java. This calculator is simple with an easy code to help novices learn how to create a calculator program with Java. In this program, we will ask the user to input the operation sign and the program will start doing operation and will print the output on the screen.

Below is the output of the calculator program in java. Java projects, Java source code and java examples Search form Java is a set of several computer software and specifications developed by Sun Microsystems, later acquired by Oracle Corporation, that provides a system for developing application software and deploying it in a cross-platform computing environment.

Lex reads an input stream specifying the lexical analyzer and outputs source code implementing the lexer in the C programming language. We add new projects on a regular basis, so you can bookmark this page and stay updated with the latest Java projects with their source code and project documents.

Learn how it works and then maybe try and implement some of … 6. I am a beginner to Java and am learning about using methods. If you are a beginner or are looking for simple code, then those codes will be difficult for you to understand. If you have no idea on how to solve the Factorial in math, do check out our tutorial below so that you will get an idea. It's a convention designed for the age of the internet and a sound strategy for avoiding … Output: Java Calculator Source Code Explanation.

Then click on the Finish button. Compile the file by using javac command. I would like to know at the same time about good coding style. Above Example is create to learn Basic Functionality. The Factorial program in … Here all values are input through button click.

So I would advice, you print it out and follow the instructions. Using package com. I want to make a simple calculator that uses methods effectively. Calculator Program in Java Swing — fig — 3. Both of them are netBeans 5. Simple Java Calculator. The commands for executing the LEX program are: lex abc.

The code itself uses a sum formula to calculate the grade of the individual student.