<div>import javax.swing.*;<br>import java.awt.event.ActionEvent;<br>import java.awt.event.ActionListener;<br>import java.awt.*;</div> <div>public class ClickCalculator extends JFrame implements ActionListener {<br>   private static final long serialVersionUID = 1L;<br>   <br>       JButton btn1 = new JButton("1");<br>       JButton btn2 = new JButton("2");<br>       JButton btn3 = new JButton("3");<br>       JButton btn4 = new JButton("4");<br>       JButton btn5 = new JButton("5");<br>       JButton btn6 = new JButton("6");<br>       JButton btn7 = new JButton("7");<br>       JButton btn8 = new JButton("8");<br>       JButton btn9 = new JButton("9");<br>       JButton btn10 = new JButton("0");<br>       JButton btn11 = new JButton("C");<br>       JButton btn12 = new JButton("=");<br>       JButton btn13 = new JButton("+");<br>       JButton btn14 = new JButton("-");<br>       JButton btn15 = new JButton("/");<br>       JButton btn16 = new JButton("*");<br>       <br>       JLabel display = new JLabel();<br>       <br>   <br>   <br>   public ClickCalculator() {<br>      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);<br>      setSize(400,200);<br>      makePanel();<br>      setVisible(true);<br>         <br>      <br>      <br>   }<br>   <br>   public void makePanel() {<br>          JPanel p1 = new JPanel();<br>          p1.setSize(500,50);<br>          JPanel p2 = new JPanel(new GridLayout(4,4));<br>           p2.add(btn1);<br>            p2.add(btn2);<br>            p2.add(btn3);<br>            p2.add(btn4);<br>            p2.add(btn5);<br>            p2.add(btn6);<br>            p2.add(btn7);<br>            p2.add(btn8);<br>            p2.add(btn9);<br>            p2.add(btn10);<br>            p2.add(btn11);<br>            p2.add(btn12);<br>            p2.add(btn13);<br>            p2.add(btn14);<br>            p2.add(btn15);<br>            p2.add(btn16);<br>            add(p1, BorderLayout.CENTER);<br>            p1.add(display);<br>            add(p2, BorderLayout.SOUTH);<br>   <br>            btn1.addActionListener(this);<br>            btn2.addActionListener(this);<br>            btn3.addActionListener(this);<br>            btn4.addActionListener(this);<br>            btn5.addActionListener(this);<br>            btn6.addActionListener(this);<br>            btn7.addActionListener(this);<br>            btn8.addActionListener(this);<br>            btn9.addActionListener(this);<br>            btn10.addActionListener(this);<br>            btn11.addActionListener(this);<br>            btn12.addActionListener(this);<br>            btn13.addActionListener(this);<br>            btn14.addActionListener(this);<br>            btn15.addActionListener(this);<br>            btn16.addActionListener(this);<br>   }</div> <div>   <br>   public void actionPerformed(ActionEvent e) {<br>      String str = e.getActionCommand();<br>      <br>   }<br>   <br>   public static void main(String[] args) {<br>      // TODO Auto-generated method stub<br>      ClickCalculator cc = new ClickCalculator();<br>      cc.setTitle("누르는 계산기");<br>      cc.makePanel();<br>   }<br>   <br>}</div> <div> </div> <div> </div> <div>자바 이클립스 중인데 실행을 하면 숫자입력하는 라벨?</div> <div>같은게 안떠서 입력이 안되네요...</div> <div> </div> <div>어디가 문제일까요?</div>