【免费】银行家算法java实现带UI界面各个类文件

共8个文件

java：8个

银行家算法

java

5星 · 超过95%的资源需积分: 0 83 浏览量 2012-06-19 21:48:36 上传评论 4 收藏 14KB RAR 举报

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收起资源包目录

src.rar （8个子文件）

banker

Process.java 4KB

BankerAlgorithm.java 7KB

bankerUI

ChangeProcessDialog.java 6KB

AddResourceDialog.java 3KB

RequestResourceDialog.java 3KB

DeleteProcessDialog.java 2KB

BankerMainUI.java 14KB

AddProcessDialog.java 5KB

package bankerUI; import banker.Process; import banker.BankerAlgorithm; import java.util.ArrayList; import java.awt.BorderLayout; import java.awt.FlowLayout; import java.awt.Image; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.BorderFactory; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JEditorPane; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JSplitPane; import javax.swing.JTextArea; import javax.swing.JTextField; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public class BankerMainUI extends JFrame implements ActionListener { private static final long serialVersionUID = -8004544916653049326L; private JPanel panel; // north private JButton addResource; private JTextField textResourceCount; // east private JButton addProcess; private JButton deleteProcess; private JButton changeProcess; private JButton requestResource; private JButton currentSecured; private JButton exit; // center private JEditorPane resourcesInfo; private JEditorPane processesInfo; // 用html格式显示进程需要资源个数. private JTextArea result; private JSplitPane splitCenter; // data private BankerAlgorithm banker; private int resourceClassesCount;// 表示资源的个数 // Dialogs private AddResourceDialog resourceDialog; private AddProcessDialog processDialog; private ChangeProcessDialog change; private DeleteProcessDialog delete; private RequestResourceDialog request; public BankerMainUI() { super("银行家算法"); try { UIManager .setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel"); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InstantiationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (UnsupportedLookAndFeelException e) { // TODO Auto-generated catch block e.printStackTrace(); } // Toolkit tool = this.getToolkit(); // Image ico = // tool.getImage("G:\\workspace\\BankerAlgorithm\\exe\\img\\iconImage.png"); // setIconImage(ico); setBounds(100, 100, 800, 600); panel = new JPanel(new BorderLayout()); // north JPanel north = new JPanel(); FlowLayout flowLayout = (FlowLayout) north.getLayout(); flowLayout.setAlignment(FlowLayout.LEFT); JLabel label = new JLabel("请输入系统资源种类个数:"); north.add(label); textResourceCount = new JTextField(20); north.add(textResourceCount); addResource = new JButton("添加系统资源个数"); addResource.addActionListener(this); north.add(addResource); panel.add(north, BorderLayout.NORTH); // center resourcesInfo = new JEditorPane("text/html", "<html></html>"); resourcesInfo.setEditable(false); processesInfo = new JEditorPane("text/html", "<html></html>"); // 以html格式显示进程信息. processesInfo.setEditable(false); JSplitPane splitInfo = new JSplitPane(JSplitPane.VERTICAL_SPLIT); splitInfo.add(new JScrollPane(resourcesInfo), JSplitPane.TOP); splitInfo.add(new JScrollPane(processesInfo), JSplitPane.BOTTOM); splitInfo.setBorder(BorderFactory.createTitledBorder("系统信息")); splitInfo.setOneTouchExpandable(true); result = new JTextArea(5, 30); result.setEditable(false); result.setWrapStyleWord(true); // 按单词换行,即所有单词都不会打断. result.setLineWrap(true); // 换行. JScrollPane textScroll = new JScrollPane(result); textScroll.setBorder(BorderFactory.createTitledBorder("执行结果")); splitCenter = new JSplitPane(JSplitPane.VERTICAL_SPLIT); splitCenter.setResizeWeight(1.0); splitCenter.add(splitInfo, JSplitPane.TOP); splitCenter.add(textScroll, JSplitPane.BOTTOM); splitCenter.setOneTouchExpandable(true); // 点击一下就可以扩展分割开来的控件. panel.add(splitCenter, BorderLayout.CENTER); // east JPanel east = new JPanel(); addProcess = new JButton("添加进程"); addProcess.addActionListener(this); changeProcess = new JButton("更改进程信息"); changeProcess.addActionListener(this); deleteProcess = new JButton("删除进程"); deleteProcess.addActionListener(this); requestResource = new JButton("请求资源"); // requestResource.setAlignmentY(Component.BOTTOM_ALIGNMENT); requestResource.addActionListener(this); currentSecured = new JButton("当前系统是否安全"); currentSecured.addActionListener(this); exit = new JButton("退出"); exit.addActionListener(this); east.setLayout(new BoxLayout(east, BoxLayout.Y_AXIS)); east.add(addProcess); east.add(changeProcess); east.add(deleteProcess); east.add(currentSecured); east.add(requestResource); east.add(exit); panel.add(east, BorderLayout.EAST); this.getContentPane().add(new JScrollPane(panel)); setEastButtonEnabled(false); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public void setResourceClassesCount(int count) { resourceClassesCount = count; } public void setEastButtonEnabled(boolean b) { // east addProcess.setEnabled(b); changeProcess.setEnabled(b); deleteProcess.setEnabled(b); requestResource.setEnabled(b); currentSecured.setEnabled(b); exit.setEnabled(b); } public BankerAlgorithm getBanker() { return banker; } // 一个数组小于另一个数组,两个数组大小相等. public boolean aLowerB(int[] a, int[] b) { for (int i = 0; i < a.length; i++) { if (a[i] > b[i]) return false; } return true; } // 在resourceInfoz中显示系统资源的信息. private void updateTotalResourcesInfo() { StringBuffer html = new StringBuffer(100); html.append("<html><body>"); html.append("<table width = \"100%\" border = \"1\" bgcolor=\"#C0C0C0\" bordercolor=\"#000000\">\n"); StringBuffer resourceNames = new StringBuffer("<tr><td>资源名</td>"); StringBuffer resourceCounts = new StringBuffer("<tr><td>资源个数</td>"); int[] totalResource = banker.getTotalResource(); for (int i = 0; i < totalResource.length; i++) { resourceNames.append("<td>"); resourceNames.append("R" + String.valueOf(i)); resourceNames.append("</td>"); resourceCounts.append("<td>"); resourceCounts.append(String.valueOf(totalResource[i])); resourceCounts.append("</td>"); } resourceNames.append("</tr>"); resourceCounts.append("</tr>"); html.append(resourceNames); html.append(resourceCounts); html.append("</table>\n</body>\n</html>"); resourcesInfo.setText(html.toString()); } private void updateProcessInfo() { StringBuffer content = new StringBuffer("<html>\n"); content.append("<body>\n"); content.append("<table width = \"100%\" border = \"1\" bgcolor=\"#C0C0C0\" bordercolor=\"#000000\">\n"); content.append("<tr><td>资源情况</td><td align = \"center\" colspan = " + resourceClassesCount + ">Max</td><td align = \"center\" colspan = " + resourceClassesCount + ">Allocated</td><td align = \"center\" colspan = " + resourceClassesCount + ">Need</td><td align = \"center\" colspan = " + resourceClassesCount + ">Avilable</td></tr>"); content.append("<tr>"); content.append("<td>进程名</td>"); StringBuffer processNames = new StringBuffer(40); for (int i = 0; i < resourceClassesCount; i++) { processNames.append("<td>R" + i + "</td>"); } content.append(processNames); // Max content.append(processNames); // Allocated content.append(processNames); // Need content.append(processNames); // Avilable content.append("</tr>"); ArrayList<Process> processes = banker.getProcesses(); for (int i = 0; i < processes.size(); i++) { Process p = processes.get(i); content.

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