import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Hina08_2 extends JFrame{ public static void main(String[] args){ new Hina08_2(); } public Hina08_2(){ //画面の設定 setSize(500,500); setTitle("Java Programing"); setDefaultCloseOperation(EXIT_ON_CLOSE); //パネルを貼り付ける MyJPanel myJPanel= new MyJPanel(); Container c = getContentPane(); //コンテナの取得 c.add(myJPanel); //パネルを貼る setVisible(true); } public class MyJPanel extends JPanel{ public MyJPanel(){ } public void paintComponent(Graphics g) { g.setColor(new Color(255, 0, 0)); //軸の線分を書く g.drawLine(0,250,500,250); g.drawLine(250,0,250,500); //軸の文字を書く g.drawString("x",480,260); g.drawString("y",260,10); //ここにコードを書く } } }