import java.awt.BorderLayout;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
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;
// sourth
private JButton addProcess;
private JButton requestResource;
private JButton currentSecured;
private JButton exit;
private JButton addResource;
private JTextField textResourceCount;
JButton reset;
// 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 BankersAlgorithm banker;
private int resourceClassesCount;// 表示资源的个数
// Dialogs
private AddResource resourceDialog;
private AddProcess processDialog;
private RequestResource request;
public BankerMainUI() {
super("OSKS_Banker Algorithm_hw_software151");
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();
}
setBounds(200, 200, 800, 400);// 面板size
panel = new JPanel(new BorderLayout());
// 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(processesInfo));
result = new JTextArea(2, 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.
splitCenter = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
splitCenter.setResizeWeight(1.0);
splitCenter.add(splitInfo);
panel.add(splitCenter);
// north
JLabel title = new JLabel("银行家算法");
title.setFont(new java.awt.Font("Dialog", 1, 20));
JPanel north = new JPanel(new FlowLayout());
north.add(title);
panel.add(north, BorderLayout.NORTH);
// sourth
GridLayout layout = new GridLayout(2,7);
JPanel sourth = new JPanel(layout);
JLabel label = new JLabel("资源个数",JLabel.CENTER);
reset = new JButton("重置");
textResourceCount = new JTextField(10);
addResource = new JButton("添加资源");
addResource.addActionListener(this);
addProcess = new JButton("输入进程");
addProcess.addActionListener(this);
requestResource = new JButton("请求资源");
requestResource.addActionListener(this);
currentSecured = new JButton("系统安全性检查");
currentSecured.addActionListener(this);
exit = new JButton("退出");
exit.addActionListener(this);
sourth.add(label,0);
sourth.add(textResourceCount,1);// 资源数输入框
sourth.add(addResource,2);
sourth.add(reset,3);
sourth.add(addProcess,4);
sourth.add(currentSecured,5);
sourth.add(requestResource,6);
sourth.add(exit,7);
/* GridBagConstraints s= new GridBagConstraints();
s.fill = GridBagConstraints.BOTH;
s.gridwidth=4;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(label, s);
s.gridwidth=4;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(textResourceCount, s);
s.gridwidth=0;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(addResource, s);
s.gridwidth=3;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(addProcess, s);
s.gridwidth=3;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(currentSecured, s);
s.gridwidth=3;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(requestResource, s);
s.gridwidth=0;
s.weightx = 0;
s.weighty = 0;
layout.setConstraints(exit, s);*/
panel.add(sourth, BorderLayout.SOUTH);
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);
requestResource.setEnabled(b);
currentSecured.setEnabled(b);
exit.setEnabled(b);
reset.setEnabled(b);
}
public BankersAlgorithm 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(10);
html.append("<!--<html><body>");
html.append("<table width = \"100%\" border = \"1\" bgcolor=\"pink\" bordercolor=\"pink\">\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=\"white\" bordercolor=\"white\">\n");
content.append("<tr><td>资源情况</td><td align = \"left\" colspan = "
+ resourceClassesCount
+ ">最大需求</td><td align = \"left\" colspan = "
+ resourceClassesCount
+ ">已分配</td><td align = \"left\" colspan = "
+ resourceClassesCount
+ ">需求</td><td align = \"left\" colspan = "
+ resourceClassesCount + ">可用资源</td></tr>");
content.append("<tr>");
content.append("<td>进程</td>");
StringBuffer processNames = new StringBuffer(40);
for (int i = 0; i < resourceClassesCount; i++) {
processNames.append("<td>资源" + i + "</td>");
}
content.append(processNames); // Max
content.append(processNames); // Allocated
content.append(processNames); // Need
content.append(processNames); // Avilable
content.append("</tr>");
ArrayList<SystemProcess> processes = banker.getProcesses();
for (int i = 0; i < processes.size(); i++) {
SystemProcess p = processes.get(i);
content.append("<tr>" + p.makeHtml());
if (i == 0) {
int[] avilable = banker.getAvilable();
for (int j = 0; j < avilable.length; j++)
content.append("<td>" + avilable[j] + "</td>");
}
if (i == 1)
content.append("<td rowspan ="
+ String.valueOf(processes.size()
银行家算法 java 图形界面
5星 · 超过95%的资源 需积分: 41 101 浏览量
2018-01-11
11:51:53
上传
评论 2
收藏 34KB ZIP 举报 
OSKS_Banker Algorithm.zip （15个子文件） 
OSKS_Banker Algorithm 
.project 397B bin BankersAlgorithm.class 9KB AddResource.class 4KB BankerMainUI.class 11KB SystemProcess.class 4KB RequestResource.class 4KB AddProcess.class 5KB .settings org.eclipse.jdt.core.prefs 598B src SystemProcess.java 4KB RequestResource.java 3KB AddResource.java 3KB BankerMainUI.java 12KB AddProcess.java 5KB BankersAlgorithm.java 8KB .classpath 301B
评论10
最新资源