java计时器代码 可以z在Eclipse下直接运行

/* * Created on 2009-4-16 * * TODO To change the template for this generated file go to * Window - Preferences - Java - Code Style - Code Templates */ package colculor; /** * @author Administrator * * TODO To change the template for this generated type comment go to * Window - Preferences - Java - Code Style - Code Templates */ import java.awt.BorderLayout; import java.awt.Color; import java.awt.FlowLayout; import java.awt.Font; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; public class demo implements ActionListener{ JFrame frame; JPanel panel1; JPanel panel2; JPanel panel3; JButton button0; JButton button1; JButton button2; JButton button3; JButton button4; JButton button5; JButton button6; JButton button7; JButton button8; JButton button9; JButton buttonPoint; JButton buttonAdd; JButton buttonMultiply; JButton buttonDevi; JButton buttonMinus; JButton buttonEqual; JTextField text; double num1=0,num2=0,count=10; double input1=0,input2=0; double resout=0; double val1=0; boolean decimo=false; String str1; String str2; int nflag=1; public static void main(String[] args) { demo demo1=new demo(); demo1.go(); } void go(){ Font f=new Font("隶书",Font.BOLD+Font.ITALIC,15); ////字体设置 frame=new JFrame("Colculator"); frame.setResizable(false); //使窗口最大化按钮失效 panel1=new JPanel(); panel2=new JPanel(); panel3=new JPanel(); button0=new JButton("0"); // button0.setSize(-1,-1); button1=new JButton("1"); button2=new JButton("2"); button3=new JButton("3"); button4=new JButton("4"); button5=new JButton("5"); button6=new JButton("6"); button7=new JButton("7"); button8=new JButton("8"); button9=new JButton("9"); buttonPoint=new JButton("."); buttonAdd=new JButton("+"); buttonMinus=new JButton("-"); buttonMultiply=new JButton("*"); buttonDevi=new JButton("/"); buttonEqual=new JButton("="); text=new JTextField("0",20); //text.setDefaultLocale(); text.setHorizontalAlignment(JTextField.RIGHT); //使文本域中内容靠右 text.setFont(f); text.setCaretColor(new Color(0,0,255)); text.setSelectionColor(new Color(255,0,0)); text.setForeground(new Color(50,255,50)); ///text.setSize(35,35); button0.addActionListener(this); button1.addActionListener(this); button2.addActionListener(this); button3.addActionListener(this); button4.addActionListener(this); button5.addActionListener(this); button6.addActionListener(this); button7.addActionListener(this); button8.addActionListener(this); button9.addActionListener(this); buttonPoint.addActionListener(this); buttonAdd.addActionListener(this); buttonMinus.addActionListener(this); buttonMultiply.addActionListener(this); buttonDevi.addActionListener(this); buttonEqual.addActionListener(this); panel2.setLayout(null); panel2.add(button7); //button7.setSize(20,15); button7.setBounds(10,10,45,25); panel2.add(button8); //button8.setSize(20,15); button8.setBounds(60,10,50,25); panel2.add(button9); //button9.setSize(20,15); button9.setBounds(115,10,55,25); panel2.add(buttonAdd); buttonAdd.setBounds(175,10,55,25); panel2.add(button4); button4.setBounds(10,50,45,25); panel2.add(button5); button5.setBounds(60,50,50,25); panel2.add(button6); button6.setBounds(115,50,55,25); panel2.add(buttonMinus); buttonMinus.setBounds(175,50,55,25); panel2.add(button1); button1.setBounds(10,90,45,25); panel2.add(button2); button2.setBounds(60,90,50,25); panel2.add(button3); button3.setBounds(115,90,55,25); panel2.add(buttonMultiply); buttonMultiply.setBounds(175,90,55,25); panel2.add(button0); button0.setBounds(10,130,45,25); panel2.add(buttonPoint); buttonPoint.setBounds(60,130,50,25); panel2.add(buttonEqual); buttonEqual.setBounds(115,130,55,25); panel2.add(buttonDevi); buttonDevi.setBounds(175,130,55,25); panel3.setLayout(new FlowLayout()); panel3.add(text); panel1.setLayout(new BorderLayout()); panel1.add(panel3,BorderLayout.NORTH); panel1.add(panel2); frame.add(panel1); frame.setSize(250,250); frame.setVisible(true); } public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub if(button0==e.getSource()){ if(decimo==false){ input1=input1*10+0; val1=input1+input2; str1=new String(); str1=Double.toString(val1); text.setText(str1); } else{ input2=input2+0/count; count=10*count; val1=input1+input2; str1=new String(); str1=Double.toString(val1); text.setText(str1); } } if(button1==e.getSource()){ if(decimo==false){ input1=input1*10+1; val1=input1+input2; } else{ input2=input2+1/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button2==e.getSource()){ if(decimo==false){ input1=input1*10+2; val1=input1+input2; } else{ input2=input2+2/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button3==e.getSource()){ if(decimo==false){ input1=input1*10+3; val1=input1+input2; } else{ input2=input2+3/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button4==e.getSource()){ if(decimo==false){ input1=input1*10+4; val1=input1+input2; } else{ input2=input2+4/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button5==e.getSource()){ if(decimo==false){ input1=input1*10+5; val1=input1+input2; } else{ input2=input2+5/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button6==e.getSource()){ if(decimo==false){ input1=input1*10+6; val1=input1+input2; } else{ input2=input2+6/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button7==e.getSource()){ if(decimo==false){ input1=input1*10+7; val1=input1+input2; } else{ input2=input2+7/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button8==e.getSource()){ if(decimo==false){ input1=input1*10+8; val1=input1+input2; } else{ input2=input2+8/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(button9==e.getSource()){ if(decimo==false){ input1=input1*10+9; val1=input1+input2; } else{ input2=input2+9/count; count=10*count; val1=input1+input2; } str1=new String(); str1=Double.toString(val1); text.setText(str1); } if(buttonPoint==e.getSource()){ decimo=true; } if(buttonAdd==e.getSource()){ str1=new String(); str1=text.getText(); num1=Double.parseDouble(str1); input1=0; input2=0; text.setText("0"); decimo=false; count=10; nflag=1; } if(buttonMinus==e.getSource()){ str1=new String(); str1=text.getText(); num1=Double.parseDouble(str1);