mainapplet.java

进程调度模拟程序

package dispatcher;

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.UIManager;

public class MainApplet extends Applet {
  private BorderLayout borderLayout1 = new BorderLayout();

  String name[]={"A","B","C","D","E"};
  String a[][]={{"0","2","4","6","8"},{"3","6","4","5","2"}};//new String[2][5];
  int n[][]=new int[2][5];

  private JScrollPane jScrollPane1 = new JScrollPane();
  private JTable jTable1;
  private BorderLayout borderLayout2 = new BorderLayout();
  private JPanel jPanel1 = new JPanel();
  private BorderLayout borderLayout3 = new BorderLayout();
  private Border border1;
  private JPanel jPanel2 = new JPanel();
  private JButton jButton1 = new JButton();
  private JLabel jLabel1 = new JLabel();
  private GridBagLayout gridBagLayout1 = new GridBagLayout();
  private JLabel jLabel3 = new JLabel();
  private JLabel jLabel4 = new JLabel();
  private JLabel jLabel2 = new JLabel();

  public MainApplet() {
    try{
      UIManager.setLookAndFeel(
          UIManager.getCrossPlatformLookAndFeelClassName());
    }catch(Exception e){};
  }
  public void init() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception {
    //a[0][1]={"0","2","4","6","8"};
    jTable1 = new JTable(a,name);
    //jPanel1.setLayout(borderLayout1);
    border1 = BorderFactory.createEmptyBorder();
    this.setLayout(borderLayout2);
    jPanel1.setLayout(borderLayout3);
    jScrollPane1.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
    jScrollPane1.getViewport().setBackground(Color.white);
    jScrollPane1.setBorder(border1);
    jScrollPane1.setPreferredSize(new Dimension(450, 50));
    jButton1.setText("begin");
    jButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jButton1_actionPerformed(e);
      }
    });
    jLabel1.setBackground(Color.white);
    jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
    jLabel1.setText("在输入或修改数据后单击该格或按回车使之生效。");
    jPanel2.setLayout(gridBagLayout1);
    jPanel2.setBackground(Color.white);
    jLabel3.setHorizontalAlignment(SwingConstants.LEFT);
    jLabel3.setHorizontalTextPosition(SwingConstants.CENTER);
    jLabel3.setText("第1行：到达时间");
    jLabel4.setText("请输入正整数,总服务时间不超过24：");
    jLabel2.setText("第2行：服务时间");
    this.add(jPanel1, BorderLayout.CENTER);
    jPanel1.add(jScrollPane1, BorderLayout.CENTER);
    jScrollPane1.getViewport().add(jTable1, null);
    this.add(jPanel2, BorderLayout.NORTH);
    jPanel2.add(jLabel3,       new GridBagConstraints(0, 1, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel2.add(jLabel4,    new GridBagConstraints(0, 3, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel2.add(jLabel2,     new GridBagConstraints(0, 2, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel2.add(jButton1,         new GridBagConstraints(1, 3, 1, 1, 0.0, 0.0
            ,GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0));
    jPanel2.add(jLabel1, new GridBagConstraints(0, 0, 1, 1, 0.0, 0.0
            ,GridBagConstraints.EAST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 83, 11));

  }
  public void start() {

  }
  public void stop() {
  }
  public void destroy() {
  }

  void jButton1_actionPerformed(ActionEvent e) {
    boolean isRight=true;
    try{
    for(int i=0;i<2;i++)
      for(int j=0;j<5;j++){
        n[i][j]=Integer.valueOf(a[i][j].toString()).intValue() ;
        if(n[i][j]<0||n[i][j]>24){
          isRight=false;
        }
      }
    if(n[1][0]+n[1][1]+n[1][2]+n[1][3]+n[1][4]>24)
      isRight=false;
      if(isRight){
        ShowFrame sf=new ShowFrame(this,n);
        sf.show();
      }
    }catch (NumberFormatException ex){
    JOptionPane.showMessageDialog(this,"输入不正确！请重新输入。","fail",JOptionPane.WARNING_MESSAGE);
    }
    if(!isRight)
      JOptionPane.showMessageDialog(this,"输入不正确！请重新输入。","fail",JOptionPane.WARNING_MESSAGE);
  }
/*
  public void paint(Graphics g){
    g.drawLine(20,80,580,80);
    for(int i=20;i<=580;i=i+20)
      g.fillOval(i,75,2,6);
  }

*/
}