BMI体重测定代码.doc

rt javax.swing.*;import java.awt.event.ActionListener;import java.awt.event.ActionEvent;import java.awt.Container;import java.awt.GridBagLayout;import java.awt.GridBagConstraints;import java.awt.Font;public class BMICaculator implements ActionListenerprivate static final int WINDOW_WIDTH=350;private static final int WINDOW_HEIGHT=220;private static final int FIELD_WIDTH=22;private static final String JFranme = null;private JFrame window;JLabel prescriptionLabel;JLabel weightLabel;JLabel heightLabel;JLabel resultLabel;private JLabel evaluateLabel;private JTextField weightField,heightField,resultField,evaluateField;private JButton run,rest;public BMICaculator()initComponent();private void initComponent()window = new JFrame(BMI Caculator);window.setSize(WINDOW_WIDTH,WINDOW_HEIGHT);window.setFont(new Font(Simsun,Font.PLAIN,14);Container c=window.getContentPane();c.setLayout(new GridBagLayout();GridBagConstraints gc=new GridBagConstraints();prescriptionLabel =new JLabel(请输入你的体重和身高，可以计算你的BMI值。);prescriptionLabel.setFont(new Font(Simsun,Font.PLAIN,14);gc.gridx=0;gc.gridy=0;gc.gridwidth=2;c.add(prescriptionLabel,gc);weightLabel=new JLabel(体重(公斤);weightLabel.setFont(new Font(Simsun,Font.PLAIN,14);weightField=new JTextField(FIELD_WIDTH);gc.gridx=0;gc.gridy=1;gc.gridwidth=1;c.add(weightLabel,gc);gc.gridx=1;gc.gridy=1;c.add(weightField,gc);heightLabel=new JLabel(身高(米);heightLabel.setFont(new Font(Simsun,Font.PLAIN,14);heightField= new JTextField(FIELD_WIDTH);gc.gridx=0;gc.gridy=2;c.add(heightLabel,gc);gc.gridx=1;gc.gridy=2;c.add(heightField,gc);resultLabel=new JLabel(BMI计算结果);resultLabel.setFont(new Font(Simsun, Font.PLAIN,14);resultField=new JTextField(FIELD_WIDTH);gc.gridx=0;gc.gridy=3;c.add(resultLabel,gc);gc.gridx=1;gc.gridy=3;c.add(resultField,gc);evaluateLabel=new JLabel(评价);evaluateLabel.setFont(new Font(Simsun,Font.PLAIN,14);evaluateField= new JTextField(FIELD_