└── Calculator using java


/Calculator using java:
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 1 | import javax.swing.*;
 2 | import java.awt.*;
 3 |  
 4 | public class Calculator {
 5 |     JFrame frame;//Creating object of JFrame class
 6 |     Calculator()//Creating constructor of the class
 7 |     {
 8 |         prepareGUI();
 9 |     }
10 |     public void prepareGUI()
11 |     {
12 |         frame=new JFrame();
13 |         frame.setTitle("Calculator");//Setting title of the JFrame
14 |         frame.setSize(300,490);//Setting size
15 |         frame.getContentPane().setLayout(null);//Setting Layout
16 |         frame.getContentPane().setBackground(Color.black);//Setting Background Color
17 |         frame.setResizable(false);//Preventing window from resizing
18 |         frame.setLocationRelativeTo(null);//Setting location to the center of the screen
19 |         frame.setVisible(true);//Setting window's visibility
20 |         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//Setting default close operation
21 |     }
22 | }
23 | 


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