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+import java.awt.Dimension;%0Aimport java.awt.GridLayout;%0Aimport java.awt.event.ActionEvent;%0Aimport java.awt.event.ActionListener;%0A%0Aimport javax.swing.JButton;%0Aimport javax.swing.JFrame;%0Aimport javax.swing.JPanel;%0A%0Apublic class SkypeTools %7B%0A%09%0A%09public static JFrame frame1 = new JFrame(%22Pick one..%22);%0A%09public static JFrame frame2 = new Spam(%22Spammah%22);%0A%09public static JFrame frame3 = new Mass(%22Mass Messenger%22);%0A%09%0A%09public static void main(String%5B%5D args) %7B%0A        frame1.setLocationRelativeTo(null);%0A        frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);%0A        JPanel buttonPanel = new JPanel();%0A        JPanel containerPanel = new JPanel();%0A        buttonPanel.setLayout(new GridLayout(2,2));%0A        JButton b11 = new JButton(%22Spammer%22);%0A        JButton b22 = new JButton(%22Mass Messenger%22);%0A        buttonPanel.add(b11);%0A        buttonPanel.add(b22);%0A        buttonPanel.setPreferredSize(new Dimension(300, 100));%0A        containerPanel.add(buttonPanel);     %0A%0A        frame1.getContentPane().add(containerPanel);%0A        frame1.pack();%0A        frame1.setVisible(true);%0A        frame2.setVisible(false);%0A        frame3.setVisible(false);%0A        %0A%09%09b11.addActionListener(new ActionListener() %7B%0A%09%09%09@Override%0A%09%09%09public void actionPerformed(ActionEvent e) %7B%0A%09%09%09%09frame1.setVisible(false);%0A%09%09%09%09frame2.setSize(700, 300);%0A%09%09%09%09frame2.setLocationRelativeTo(null);%0A%09%09%09%09frame2.setVisible(true);%0A%09%09%09%7D%0A%09%09%7D);%0A        %0A%09%09b22.addActionListener(new ActionListener() %7B%0A%09%09%09@Override%0A%09%09%09public void actionPerformed(ActionEvent e) %7B%0A%09%09%09%09frame1.setVisible(false);%0A%09%09%09%09frame3.setSize(700, 300);%0A%09%09%09%09frame3.setLocationRelativeTo(null);%0A%09%09%09%09frame3.setVisible(true);%0A%09%09%09%7D%0A%09%09%7D);%0A%09%7D%0A%7D%0A

Create SkypeTools.java