计算器

import java.awt.Color; import java.awt.Container; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.GridLayout; import java.awt.Insets; import javax.swing.*; import javax.swing.border.LineBorder; public class MyCaculate extends JFrame { private JPanel jp1,jp2; private JButton jb; private JTextField display1, display2, display3; private JMenuBar jmb; private JMenu jm; private JMenuItem jmi; private final String[] firstmenu = { “查看(V)”, “编辑(E)”, “帮助(H)” }; private final String[][] secondMenu = { { “标准型”, “科学型”, “程序员”, “统计信息”, “历史信息”, “数字分组”, “基本”, “单位转换”, “日期计算”, “工作表” }, { “复制(C)”, “粘贴(P)”, “历史记录” }, { “查看帮助(V)”, “关于计算器(A)” } }; private final char[] Mnemonic = { ‘V’, ‘E’, ‘H’ }; private String buttonsName[]={“MC”,”MR”,”MS”,”M+”,”M-“, “←”,”CE”,”C”,”±”,”√”, “7”,”8″,”9″,”/”,”%”, “4”,”5″,”6″,”*”,”1/x”, “1”,”2″,”3″,”-“,”=”, “0”,”.”,”+”}; public MyCaculate() { // this.setTitle(“计算器”); // this.setLocation(500, 200); // this.setSize(230, 320); // this.setBackground(new Color(217, 228, 241)); // this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // this.setVisible(true); } protected JButton makebutton(String name,GridBagLayout gridbag,GridBagConstraints c) { JButton button = new JButton(name); gridbag.setConstraints(button, c); return button; } public void initFace() { jmb = new JMenuBar(); for (int i = 0; i < firstmenu.length; i++) { jm = new JMenu(firstmenu[i]); jm.setMnemonic(Mnemonic[i]); for (int j = 0; j < secondMenu[i].length; j++) { jmi = new JMenuItem(secondMenu[i][j]); jm.add(jmi); if (j == 3 || j == 5) { jm.addSeparator(); } } jmb.add(jm); } this.setLayout(null); display2 = new JTextField(“0”); display2.setBounds(12, 12, 190, 50); display2.setFont(new Font(“宋体”, Font.BOLD, 26)); display2.setHorizontalAlignment(JLabel.RIGHT); display2.setEnabled(false); display2.setDisabledTextColor(Color.BLACK); display2.setBackground(new Color(247, 250, 254)); this.add(display2); //做按钮组 jp1 = new JPanel(); jp1.setLayout(new GridLayout(4, 4, 2, 2)); jp1.setBounds(12, 70, 190, 132); for (int i = 0; i < 20; i++) { jb = new JButton(buttonsName[i]); jb.setMargin(new Insets(0, 0, 0, 0)); jp1.add(jb); } this.add(jp1); // jp2 = new JPanel(); // jp2.setLayout(new GridBagLayout()); // jp2.setBounds(12, 200, 190, 66); // for (int i = 20; i < buttonsName.length; i++) { // jb = new JButton(buttonsName[i]); // jb.setMargin(new Insets(0, 0, 0, 0)); // jp2.add(jb); // } // this.add(jp2); GridBagLayout gridbag = new GridBagLayout();         GridBagConstraints c = new GridBagConstraints();         c.fill = GridBagConstraints.BOTH;         c.weightx = 1.0;         jp2 = new JPanel(); jp2.setLayout(gridbag); jp2.setFont(new Font(“SansSerif”, Font.PLAIN, 14));         jp2.setBounds(12, 204, 190, 200); for (int i = 20; i < buttonsName.length; i++) { if (i == 24) { c.gridwidth = 1;                //reset to the default         c.gridheight = 2;         c.weighty = 1.0; c.gridwidth = GridBagConstraints.REMAINDER; //end row }else if (i == 25) { c.gridwidth = GridBagConstraints.RELATIVE; }else { c.gridwidth = 1;                //reset to the default         c.gridheight = 1;         c.weighty = 1.0; } jb = makebutton(buttonsName[i], gridbag, c); jb.setMargin(new Insets(0, 0, 0, 0)); jp2.add(jb); }          //        c.gridwidth = GridBagConstraints.REMAINDER; //end row //        makebutton(“Button4”, gridbag, c); // //        c.weightx = 0.0;                  //reset to the default //        makebutton(“Button5”, gridbag, c); //another row // //          c.gridwidth = GridBagConstraints.RELATIVE; //next-to-last in row //        makebutton(“Button6”, gridbag, c); // //          c.gridwidth = GridBagConstraints.REMAINDER; //end row //        makebutton(“Button7”, gridbag, c); // //          c.gridwidth = 1;                //reset to the default //          c.gridheight = 2; //        c.weighty = 1.0; //        makebutton(“Button8”, gridbag, c); // //        c.weighty = 0.0;                  //reset to the default //          c.gridwidth = GridBagConstraints.REMAINDER; //end row //          c.gridheight = 1;               //reset to the default //        makebutton(“Button9”, gridbag, c); //        makebutton(“Button10”, gridbag, c);                   this.add(jp2); // display1 = new JTextField(“”); // display2 = new JTextField(“0”); // display3 = new JTextField(“”); // display1.setBounds(0, 0, 204, 26); // display2.setBounds(20, 20, 184, 34); // display3.setBounds(0, 20, 20, 34); // display1.setHorizontalAlignment(JLabel.RIGHT); // display2.setHorizontalAlignment(JLabel.RIGHT); // display3.setHorizontalAlignment(JLabel.CENTER); // display1.setFont(new Font(“宋体”, Font.PLAIN, 12)); // display2.setFont(new Font(“宋体”, Font.BOLD, 20)); // display3.setFont(new Font(“宋体”, Font.PLAIN, 20)); // display1.setDisabledTextColor(Color.BLACK); // display2.setDisabledTextColor(Color.BLACK); // display3.setDisabledTextColor(Color.BLACK); // display1.setBorder(new LineBorder(new Color(242, 247, 252))); // display2.setBorder(new LineBorder(new Color(242, 247, 252))); // display3.setBorder(new LineBorder(new Color(242, 247, 252))); // display1.setBackground(new Color(242, 247, 252)); // display2.setBackground(new Color(242, 247, 252)); // display3.setBackground(new Color(242, 247, 252)); // // this.add(display1); // this.add(display2); // this.add(display3); // jm = new JMenu(“查看(V)”); // jmi = new JMenuItem(“标准型”); // 将菜单项放到对应的菜单中,将菜单放到菜单栏中 // jm.add(jmi); // jmb.add(jm); // 为当前窗体设置菜单栏 // this.setLayeredPane(null); this.setJMenuBar(jmb); this.setTitle(“计算器”); this.setLocation(500, 200); this.setSize(230, 480); this.setBackground(new Color(217, 228, 241)); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); // this.setBackground(new Color(255, 0, 0)); } public static void main(String[] args) { new MyCaculate().initFace(); } }

澳门新葡亰游戏网址,import java.awt.Color; import java.awt.Dimension; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.JTextField; public class Myclass  extends JFrame { private JPanel jp1,jp2; private JButton jb; private JTextField display1, display2, display3; private JMenuBar jmb; private JMenu jm; private JMenuItem jmi; private final String[] firstmenu = { “查看(V)”, “编辑(E)”, “帮助(H)” }; private final String[][] secondMenu = { { “标准型”, “科学型”, “程序员”, “统计信息”, “历史信息”, “数字分组”, “基本”, “单位转换”, “日期计算”, “工作表” }, { “复制(C)”, “粘贴(P)”, “历史记录” }, { “查看帮助(V)”, “关于计算器(A)” } }; private final char[] Mnemonic = { ‘V’, ‘E’, ‘H’ }; private String buttonsName[]={“MC”,”MR”,”MS”,”M+”,”M-“, “←”,”CE”,”C”,”±”,”√”, “7”,”8″,”9″,”/”,”%”, “4”,”5″,”6″,”*”,”1/x”, “1”,”2″,”3″,”-“,”=”, “0”,”.”,”+”};   public Myclass(){ for (int i = 0; i < buttonsName.length; i++) { jb = new JButton(buttonsName[i]); if (i == 24) { jb.setBounds(i % 5 *(35 +7),65 + i /5 * (29 + 7), 35, 65); } else if (i ==25) { jb.setBounds(i % 5 *(35 +7),65 + i /5 * (29 + 7), 77, 29); } else if (i > 25) { jb.setBounds(i % 5 *(35 +7)+5+42,65 + i /5 * (29 + 7), 35,29); } else {                 jb.setBounds(i % 5 *(35 +7),65 + i /5 * (29 + 7), 35, 29);//测量长宽和间距 }  jb.setMarigin(new java.awt.Insets(0,0,0,0) ); thsi.add(jb); {               }{ } } this.setTitle(“计算器”);display2 = new JTextField(“0”); display2.setBounds(12, 12, 190, 50); display2.setFont(new Font(“宋体”, Font.BOLD, 26)); display2.setHorizontalAlignment(JLabel.RIGHT); display2.setEnabled(false); display2.setDisabledTextColor(Color.BLACK); display2.setBackground(new Color(247, 250, 254)); this.add(display2); this.setLayout(null); this.setTitle(“计算器”); this.setLocation(500, 200); this.setSize(230, 320); this.setBackground(new Color(217, 228, 241)); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); }     public static void main(String[] args) { new Myclass();     } }

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