Simple Calculator Program in Java Using AWT (Grid Layout) Aim: To write a Java program that works as a simple calculator. Use a grid layout to arrange buttons for the digits and for the +, -, *, % operations. Add a text field to display the result.

Jan 29, 2014 · In this example, we are going to design a simple calculator using GridLayout, where the grid will contain simple components. 1. Syntax of the Java GridLayout. GridLayout has two constructors: GridLayout(): empty constructor …

Jan 27, 2016 · JPanel panelScreen = new JPanel(new GridLayout(0,1)); JTextArea screen = new JTextArea(); panelScreen.add(screen); JFrame frame = new JFrame("CALCULATOR"); frame.setDefaultCloseOperation(EXIT_ON_CLOSE); JPanel panelButtons = new JPanel(new GridLayout(3,3)); JButton oneButton = new JButton("1"); panelButtons.add(oneButton);

Apr 16, 2021 · In this article we will use Java Swing components to create a simple calculator with only +, -, /, * operations. add (Component c) : adds component to container. setSize (int a, int b) : sets the size of container to specified dimensions. setText (String s) : sets the text of the label to s. getText () : returns the text of the label.

Jan 25, 2017 · In the simple example below you can see that I'm using new Insets(5,5,5,5); to add some spaces between the components, and I make sure that they will fill their whole cell by setting a fill attribute to GridBagConstraints.HORIZONTAL, among other things.

Aug 21, 2018 · GridLayout (int rw, int cl, int hgap, int vgap): It creates a grid layout with the specified number of rows and columns with horizontal and vertical gap. Commonly Used Methods: addLayoutComponent (String str, Component cmp): Adds the specified component with the specified name to the layout.

In this guide, we’ll walk through building a calculator with a grid layout for buttons, a text field for displaying results, and functionality for basic arithmetic operations.

Jul 24, 2019 · A Java applet program for the calculator. Use a grid layout to arrange buttons for the digits and for the Addition, Subtraction, Multiplication, Division operations. Add a text field to display the First and Second Numbers and results. Also, you can use the Java compiler to compile a program.

2)Write a program to generate following output using Border Layout. In this blog we have complete syllabus for Computer Science engineering and Diploma , BSC. In easiest way in …

mainPanel.setLayout(new GridLayout(rows, cols, gap, gap)); for (String[] btnLabelRow : BTN_LABELS) { for (String btnLabel : btnLabelRow) { JButton btn = createButton(btnLabel); mainPanel.add(btn); private JButton createButton(String btnLabel) { JButton button = new JButton(btnLabel); button.setFont(button.getFont().deriveFont(BTN_FONT_SIZE));