![]() ![]() You might get some errors in the code, this is because the imports and the module info are not setup yet: Browse to WindowBuilder, JFrame and click Next:Īt package name type “userinterface” and at name “Calculator”. Select File > New > Other (or press Ctrl + N) to add a Java file to the project. If a popup appears that asks you to fill in a module name, fill in “calculator” and press Create. Fill in the project name and press Finish (you may leave the other options at their default values): To start a new project, select File > New > Java Project from the menu. The installation will continue in the background (you can see its progress in the lower right corner). ![]() ![]() To start the installation press Next two times. (press Enter), and select WindowBuilder and WindowBuilder XWT Support: In Eclipse, choose Help > Install New Software… In the field Work with, enter this address: The tool to create graphical user interfaces is not part of all editions of Eclipse, and must be added manually. Select the option “Use this as the default and do not ask again” and click Launch: Eclipse: Add Window Builder Select the first option: “Eclipse IDE for Java Developers”:Ĭlick “Install” (keep options as they are). You can check that via Help > About, Installation Details.ĭownload the Eclipse Installer and run that. But make sure you also have installed the Window Builder plugin of Eclipse. If you already have Eclipse installed, you can skip this part. Installing the Eclipse IDE for Java Developers It is strongly recommended to also learn the Java basics using for instance the w3schools tutorial. This tutorial is meant for beginners who are just starting with Java. Source Code import this Java tutorial you will learn how to create a simple calculator using Eclipse. res = n1 * n2 : This line multiplies the n1 and n2 variables together and assigns the result to the res variable.case '*': : This line defines a case for when the op variable is *.(n1 + " - " + n2 + " = " + res) : This line prints the equation and result of the subtraction operation to the console.res = n1 - n2 : This line subtracts the n2 variable from the n1 variable and assigns the result to the res variable.case '-': : This line defines a case for when the op variable is.break : This line ends the case block.(n1 + " + " + n2 + " = " + res) : This line prints the equation and result of the addition operation to the console.res = n1 + n2 : This line adds the n1 and n2 variables together and assigns the result to the res variable.case '+': : This line defines a case for when the op variable is +.switch(op) : This line starts a switch statement, which allows the program to execute different code based on the value of the op variable.n2 = input.nextDouble() : This line reads a Double value from the input Scanner and assigns it to the n2 variable.("Enter the Number 2 :") : This line prints a message to the console asking the user to enter the second number.n1 = input.nextDouble() : This line reads a Double value from the input Scanner and assigns it to the n1 variable.("Enter the Number 1 :") : This line prints a message to the console asking the user to enter the first number.op = input.next().charAt(0) : This line reads a single character from the input Scanner and assigns it to the op variable.("Choose an Operator :") : This line prints a message to the console asking the user to choose an operator.("+, -, *, or /") : This line prints a message to the console asking the user to enter an operator.Double n1, n2, res : This line declares three Double variables called n1, n2, and res to store the two numbers entered by the user and the result of the calculation, respectively.char op : This line declares a char variable called op to store the operator entered by the user.Scanner input = new Scanner(System.in) : This line creates a new Scanner object called input, which reads input from the standard input stream ( System.in). ![]()
0 Comments
Leave a Reply. |