package?salary; import?java.awt.*; import?javax.swing.*; import?java.awt.event.*; import?java.text.NumberFormat; public?class?Salary?extends?JFrame{ //聲明標(biāo)簽 private?JLabel?numl; private?JLabel?basel; private?JLabel?salel; //聲明文本框 private?JTextField?numf; private?JTextField?basef; private?JTextField?salef; //聲明滾動(dòng)條 private?TextArea?sumt; //聲明按鈕 private?JButton?btnsure; private?JButton?btnclean; private?JButton?btnout; //構(gòu)造方法------------------------------------------------------------------ public?Salary(){ q(); w(); r(); setSize(300,?400); setTitle("工資發(fā)放程序"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); pack(); } //實(shí)例化組件---------------------------------------------------------------------- private?void?q(){ numl=new?JLabel("編號(hào)"); basel=new?JLabel("基本工資"); salel=new?JLabel("銷售額"); numf=new?JTextField(); numf.setColumns(10); basef=new?JTextField(); basef.setColumns(10); salef=new?JTextField(); salef.setColumns(10); sumt?=?new?TextArea(); sumt.setColumns(30); btnsure=new?JButton("工資計(jì)算"); btnclean=new?JButton("清除輸入"); btnout=new?JButton("清除顯示框內(nèi)容"); } //布局----------------------------------------------------------------------- private?void?w(){ Container?a?=?getContentPane(); //存放標(biāo)簽 JPanel?panel1?=?new?JPanel(new?GridLayout(3,?1)); panel1.add(numl); panel1.add(basel); panel1.add(salel); //存放文本框 JPanel?panel2?=?new?JPanel(new?GridLayout(3,?1)); panel2.add(numf,new?FlowLayout(FlowLayout.LEFT,10,10)); panel2.add(basef,new?FlowLayout(FlowLayout.LEFT,10,10)); panel2.add(salef,new?FlowLayout(FlowLayout.LEFT,10,10)); //存放文本框與標(biāo)簽 JPanel?panel3=new?JPanel(new?BorderLayout()); panel3.setBorder(BorderFactory.createEmptyBorder(10,?10,?5,?10)); panel3.add(panel1,BorderLayout.LINE_START); //西 panel3.add(panel2,BorderLayout.LINE_END); //東 //存放按鈕 JPanel?panelBtn=?new?JPanel(new?FlowLayout(FlowLayout.CENTER,20,20)); panelBtn.add(btnsure); panelBtn.add(btnclean); //面板——1 JPanel?panel=new?JPanel(new?BorderLayout()); panel.setBorder(BorderFactory.createEmptyBorder(10,?10,?5,?10)); panel.add(panel3,BorderLayout.PAGE_START); //北 panel.add(panelBtn,BorderLayout.CENTER); panel.add(btnout,BorderLayout.PAGE_END); //南 //總面板 JPanel?pan=new?JPanel(new?BorderLayout()); pan.setBorder(BorderFactory.createEmptyBorder(10,?10,?5,?10)); pan.add(panel,BorderLayout.CENTER); pan.add(sumt,BorderLayout.LINE_END); // a.add(pan); } //-------------------------------------------------------------------------------------- private?String?t(){ double?sum,s,b; s=Double.parseDouble(salef.getText()); b=Double.parseDouble(basef.getText()); if(s>=30.0?&&?s<=299.99) sum=s*0.05+b; else?if(s>=300.0?&&?s<=999.9) sum=s*0.1+b; else?if(s>=1000.0) sum=s*0.15+b; else sum=b; String?out=""; out?+=String.format("%s\t%.1f\t%.1f\t%.1f\n",?numf.getText(),b,s,sum); return?out; } //---------------------------------------------------------------------------------- private?class?btnsure?implements?ActionListener?{ public?void?actionPerformed(ActionEvent?e)?{ ? String?s="編號(hào)?\t"+"基本工資?\t"+"銷售額?\t"+"工資?\n"; String?s1?=s+sumt.getText(); s1?+=t(); sumt.setText(s1); } } //--------------------------------------------------------------------------------------- private?class?btnclean?implements?ActionListener?{ public?void?actionPerformed(ActionEvent?e)?{ ? numf.setText(""); basef.setText(""); salef.setText(""); } } //--------------------------------------------------------------------------------------- private?class?btnout?implements?ActionListener?{ public?void?actionPerformed(ActionEvent?e)?{ ? ? sumt.setText(""); ? } } //--------------------------------------------------------------------------------------- private?void?r()?{ btnsure?h1?=?new?btnsure(); ??btnsure.addActionListener(h1); btnclean?h2=new?btnclean(); ??btnclean.addActionListener(h2); btnout?h3?=?new?btnout(); ??btnout.addActionListener(h3); } public?static?void?main(String[]?args)?{ JFrame.setDefaultLookAndFeelDecorated(true);?//?窗體裝飾 Salary?frame?=?new?Salary(); frame.setVisible(true); } }