java十进制转换为二进制、八进制与十六进制

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1、/**java十进制转换为二进制、八进制和十六进制*/importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;publicclassQueryJFrameextendsJFrameimplementsActionListener{privateJTextFieldtext_char,text2,text8,text16;privateMessageJDialogjdialog;privateButtonbutton_char;publicQueryJFrame(){super("进制转换");thi

2、s.setBounds(300,240,200,180);this.setResizable(false);this.setBackground(java.awt.Color.lightGray);this.setDefaultCloseOperation(EXIT_ON_CLOSE);this.getContentPane().setLayout(newFlowLayout(FlowLayout.RIGHT));this.getContentPane().add(newJLabel("十进制"));text_char=newJTextField(10);tex

3、t_char.setHorizontalAlignment(JTextField.RIGHT);this.getContentPane().add(text_char);this.getContentPane().add(newJLabel("二进制"));text2=newJTextField(10);text2.setHorizontalAlignment(JTextField.RIGHT);text2.setEditable(false);this.getContentPane().add(text2);this.getContentPane().add(

4、newJLabel("八进制"));text8=newJTextField(10);text8.setHorizontalAlignment(JTextField.RIGHT);text8.setEditable(false);this.getContentPane().add(text8);this.getContentPane().add(newJLabel("十六进制"));text16=newJTextField(10);text16.setHorizontalAlignment(JTextField.RIGHT);text16.setEditable(

5、false);this.getContentPane().add(text16);button_char=newButton("转换");this.add(button_char);button_char.addActionListener(this);jdialog=newMessageJDialog(this);this.setVisible(true);}privateclassMessageJDialogextendsJDialog{JFramejframe;JLabeljlabel;MessageJDialog(JFramejframe){super(

6、jframe,"提示",true);this.jframe=jframe;this.setSize(300,80);jlabel=newJLabel("",JLabel.CENTER);this.getContentPane().add(jlabel);this.setDefaultCloseOperation(HIDE_ON_CLOSE);}voidshow(Stringmessage){jlabel.setText(message);this.setLocation(jframe.getX()+100,jframe.getY()+100);this.setV

7、isible(true);}}publicvoidactionPerformed(ActionEvente){try{inti=Integer.decode(text_char.getText());text2.setText(Integer.toBinaryString(i));text8.setText(Integer.toOctalString(i));text16.setText(Integer.toHexString(i));}catch(NumberFormatExceptionnfe){jdialog.show("""+text_char.get

8、Text()+""不能