操作系统优先级和时间片调度+内存管理(6)

本域(用于现实程序每一步的操作和影响，不可编辑)

private JTextArea CPUTextArea, statuesTextArea; //后备队列PCB数组,就绪、挂起，——内存（可分分区表） PCBRecords backupPCB, readyPCB, suspendedPCB; private MemoryRecords memoryItems; private boolean flag = false; /** * 主函数 * @param args

* @throws IOException */

public static void main(String[] args) throws IOException {

new CPUScheduling().initFrame(); }

//初始化Frame

public void initFrame() {

backupList = new JList();

backupList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

backupList.setVisibleRowCount(BackupBAK_LIST_ROWS);

backupList.setFixedCellWidth(BackupBAK_CELL_SIZE);

suspendList = new JList();

suspendList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

suspendList.setVisibleRowCount(Suspend_LIST_ROWS);

suspendList.setFixedCellWidth(Suspend_CELL_SIZE);

readyList = new JList();

readyList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

readyList.setVisibleRowCount(Ready_LIST_ROWS);

readyList.setFixedCellWidth(Ready_CELL_SIZE);

memoryList = new JList();

memoryList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

memoryList.setVisibleRowCount(Memory_LIST_ROWS);

memoryList.setFixedCellWidth(Memory_CELL_SIZE);

suspendButton = new JButton(\挂起(3)\ addToBAKButton = new JButton(\加入后备(1)\ addToReadyButton = new JButton(\加入就绪(2)\ resetButton = new JButton(\重置(0)\ umountButton = new JButton(\解挂(4)\ removeButton = new JButton(\移除(5)\ startButton = new JButton(\调度开始(Enter)\ pauseButton = new JButton(\暂停(Pause)\ resetSyatemButton = new JButton(\重置系统

(Backspace)\

helpButton = new JButton(\帮助(H)\

priorityJRB = new JRadioButton(\优先级(Page Up)\

timesliceJRB = new JRadioButton(\时间片(Page Down)\

suspendButton.setToolTipText(\双击进程可以直接挂起！\

umountButton.setToolTipText(\双击解挂按钮的正上方的进程，可以直接解挂！\

removeButton.setToolTipText(\双击移除按钮的正上方的进程，可以直接移除！\

startButton.setBackground(Color.GREEN); pauseButton.setBackground(new Color(0,150,255));

resetSyatemButton.setBackground(Color.RED); backupTotalLabel = new JLabel(\总计:\ backupTotalTextField = new JTextField(\TOTAL__TEXTFIELD_SIZE);

backupTotalTextField.setEditable(false);

suspendTotalLabel = new JLabel(\总计:\ suspendTotalTextField = new JTextField(\TOTAL__TEXTFIELD_SIZE);

suspendTotalTextField.setEditable(false); timesliceSizeLabel = new JLabel(\时间片:\ timesliceJtf = new JTextField(\ timesliceJtf.setEditable(true);

CPUTextArea CPU_COLS);

CPUTextArea.setEditable(false);

statuesTextArea = new JTextArea(STATUS_ROWS, STATUS_COLS);

statuesTextArea.setEditable(false);

/* north panel*/

JPanel northPanel = new JPanel(new GridLayout(1, 3));

PCBItemPanel = new JPanel(new FlowLayout()); PCBItemPanel.setBorder(

BorderFactory.createTitledBorder(\项目信息\

= new JTextArea(CPU_ROWS,