简单加减乘除计算器.docx

文档收集于互联网，已重新整理排版 文档收集于互联网，已重新整理排版.word版本可编借，有帮助欢迎下载支持. 1 1文档来源为:从网络收集整理.word版本可编辑. import ; import ; import ; import ; import ; import ; import ; import ; import ; import ; import java.util,*; public class Supe厂Calculator extends DFrame implements ActionListener{ private JLabel heading; private DPanel headerTanel; private DTextField numberl = null; private JComboBox op = null; private DTextField numben2 = null; private ^Button eq = null; private ^Buttonclear = null;privateJButton al = null; private ^Button clear = null; private JButton al = null; private JButton a2 = null; private ^Button a3 = null; private ^Button a4 = null; private DTextField result = null; public SuperCalculator(){ this?setLayout(new FlowLayout(Flov/Layout.CENTER)); this?add(heading = new 3Label( “))； this.add(heading = new 3Label(MSUPER CALCULATOR)); this?add(heading = new 3Label( ”))； this?add(heading = new 3Label( “))； this.add(heading = new 3Label( )); //this ? setLayout(null)： // this.add(heading = new 3Label( )); this.add(heading = new 3Label(Numnerl)); numberl = nev; 3TextField(5); op = new JComboBox(new St厂in,x.十}); number2 = new 3TextField(5); eq = new JButton(Exit); eq ? addActionListene^Cthis); al = new JButton(Add); al.addActionListenen(this); a2 = new JButton(Subtract); a2? addActionListene^Cthis); a3 = new JButton(Multiple); a3 ? addActionListene^Cthis); a4 = new JButton(Divide); a4? addActionListener^this); clear = new JButton(Clear); clear.addActionListene^Cthis); result = new JTextField(5); this ? add(numberl); this.add(heading = new 3Label(Numner2)); t his ? add (numbed); this.add(heading = new 3Label(Result)); t his .add(ysult); //; this.add(heading = new JLabel( )); this?add(heading = new 3Label( )); this.add(al); this ?add(a2); this ?add(a3); this.add(a4); this?3dd(heading = new JLabel( )); this ?3€1(1((：12匸)； this ?add(eq); this ? setDefaultCloseOperation(JFrame.￡XIT_ON_CLOSE); this.setSize(480? 280); this ? setLocationRelativeTo(null); this ? setTitle(Super Calculator); thi