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- import javax.swing.*;
- import java.awt.*;
- import java.awt.event.*;
- public class GUI extends JFrame
- {
- //Setting out the variables
- JTextField answerResponse;
- JButton one,two,three,four,five,six,seven,eight,nine,zero,add,subtract,multiply,divide,equals;
- String var1, var2, tanswer;
- Double answer;
- JPanel contentpanel;
- public GUI()
- {
- //JFrame Window
- JFrame frame = new JFrame();
- frame.setSize(250, 400);
- frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
- frame.setResizable(false);
- frame.setVisible(true);
- frame.setTitle("Calculator");
- frame.setLocationRelativeTo(null);
- //Buttons
- one = new JButton("1"); two = new JButton("2"); three = new JButton("3");
- four = new JButton("4"); five = new JButton("5"); six = new JButton("6");
- seven = new JButton("7"); eight = new JButton("8"); nine = new JButton("9");
- zero = new JButton("0"); add = new JButton("+"); divide = new JButton("/");
- multiply = new JButton("*"); subtract = new JButton("-"); equals = new JButton("=");
- //Dimensions
- Dimension dim = new Dimension(75, 25);
- one.setPreferredSize(dim); two.setPreferredSize(dim); three.setPreferredSize(dim);
- four.setPreferredSize(dim); five.setPreferredSize(dim); six.setPreferredSize(dim);
- seven.setPreferredSize(dim); eight.setPreferredSize(dim); nine.setPreferredSize(dim);
- zero.setPreferredSize(new Dimension(225, 25)); add.setPreferredSize(new Dimension(113, 25)); subtract.setPreferredSize(new Dimension(113, 25));
- multiply.setPreferredSize(new Dimension(113, 25)); divide.setPreferredSize(new Dimension(113, 25)); equals.setPreferredSize(new Dimension(225, 25));
- //Content Panel
- JPanel contentPanel = new JPanel();
- frame.setContentPane(contentPanel);
- contentPanel.setLayout(new FlowLayout());
- //Adding to content panel
- contentPanel.add(one); contentPanel.add(two); contentPanel.add(three);
- contentPanel.add(four); contentPanel.add(five); contentPanel.add(six);
- contentPanel.add(seven); contentPanel.add(eight); contentPanel.add(nine);
- contentPanel.add(zero); contentPanel.add(add); contentPanel.add(subtract);
- contentPanel.add(multiply); contentPanel.add(divide); contentPanel.add(equals);
- //Declaring Variable Values
- answerResponse = new JTextField(null, 20);
- answerResponse.setEditable(false);
- contentPanel.add(answerResponse);
- }
- }
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