disk.java

操作系统磁盘空间分配与回收

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class disk extends JFrame implements ActionListener
{
	JPanel upper,lower,left,right;
    JLabel first,second,third;
    JTextField t1,t2,t3;
    JButton ensure,clear,division,reclaim,close;
    int s,total,cidao,record;//s: totaol: cidao:record:
    int weishi[][];
    int mark=0;
    String f_s_name;
    String f_c_name; 
    
    //---------distribute--------------------------
    JLabel former,latter;
    JButton exit;
    JTable di1,di2;
    JDialog division_dia,division_la;
    JLabel l1;
    JTextArea area1;
    JScrollPane area1_sc;
    JPanel pp1;
    JButton continus,separated,fen_clear;
    JLabel wenjian_label,count_label;
    JTextField wenjian_field,count_field;
    //--------------------------------------
    
    //----------recall-----------------------
    JDialog reclaim_dia,reclaim_la;
    JTable re1,re2;
    JButton ensure_re,clear_re,exit_re;
    JLabel before_recall,after_recall;
    JPanel p3;
    JLabel kind,name;
    JTextArea area2;
    JLabel wen_name;
    JTextField word;
    JScrollPane sc2;
    public class Process 
{
    String name;//name of process
    int count;//need disk
    //Vector hang,lie;
    int hang[];
    int lie[];//hang lie
    
}
   //-------------------------------------
    Vector vector=new Vector();
    
    
    public  disk()
    {   super("disk");
        this.setLayout(new FlowLayout(FlowLayout.CENTER,4,30));
        this.setSize(450,250);
        this.setLocation(390,150);
        this.setBackground(Color.red);
      //--------------------definition---------------  
        left=new JPanel();
        left.setLayout(new GridLayout(3,2));
        first=new JLabel("total",SwingConstants.RIGHT);
        second=new JLabel("per_cidao",SwingConstants.RIGHT);
        third=new JLabel("per_record",SwingConstants.RIGHT);
        t1=new JTextField(4);
        t2=new JTextField(4);
        t3=new JTextField(4);
        left.add(first);
        left.add(t1);
        left.add(second);
        left.add(t2);
        left.add(third);
        left.add(t3);
        
        right=new JPanel();
        right.setLayout(new FlowLayout(FlowLayout.CENTER,10,3));
        ensure=new JButton("sure");
        clear=new JButton("clear");
        right.add(ensure);
        right.add(clear);
        
        upper=new JPanel();
        upper.setLayout(new GridLayout(1,2));
        upper.add(left);
        upper.add(right);
        
        lower=new JPanel();
        lower.setLayout(new FlowLayout(FlowLayout.CENTER,20,4));
        division=new JButton("disk distribute");
        reclaim=new JButton("disk recall");
        close=new JButton("exit");
        lower.add(division);
        lower.add(reclaim);
        lower.add(close);
        
        ensure.addActionListener(this);
        clear.addActionListener(this);
        division.addActionListener(this);
        close.addActionListener(this);
        reclaim.addActionListener(this);
        this.add(upper);
        this.add(lower);
        
        //-------distribute---------------------
        former=new JLabel("before distribute chart");
        latter=new JLabel("after distribute chart");
        continus=new JButton("continuous distribute");
        separated=new JButton(" separated distribute");
        
        fen_clear=new JButton("clear");
        exit=new JButton("exit");
        
        l1=new JLabel("the process of assigment");
        wenjian_label=new JLabel("name of program");
        count_label=new JLabel("number distri_disk");
        
        wenjian_field=new JTextField(8);
        count_field=new JTextField(2);
        
        continus.addActionListener(this);
        separated.addActionListener(this);
        fen_clear.addActionListener(this);
        exit.addActionListener(this);
        
        area1=new JTextArea(8,30);
        area1_sc=new JScrollPane(area1);
        //------------------------------
        
        //---------------recall------------
       
        ensure_re=new JButton("recall");
        clear_re=new JButton("clear");
        exit_re=new JButton("exit");
        
        before_recall=new JLabel("before recall");
        after_recall=new JLabel("after recall");
        p3=new JPanel();
      
        name=new JLabel("process of assigment");
        area2=new JTextArea(8,30);
        
        ensure_re.addActionListener(this);
        clear_re.addActionListener(this);
        exit_re.addActionListener(this);
        
        wen_name=new JLabel("name of program");
        word=new JTextField(4);
        sc2=new JScrollPane(area2);
       
        this.setVisible(true);
          
  }//disk
       
public void actionPerformed(ActionEvent e)
{
	if(e.getSource()==ensure)
	 {
 		   if(t1.getText().equals("")||t2.getText().equals("")||t2.getText().equals(""))
 			   JOptionPane.showMessageDialog(this,"your number is not full,please put again");
 		   else
 		   {
 			   JOptionPane.showMessageDialog(this,"successful,you can distribute or recall");
 			   total=Integer.parseInt(t1.getText());
 		       cidao=Integer.parseInt(t2.getText());
 		       record=Integer.parseInt(t3.getText());
 		       mark=cidao*record;
 		       s=total*mark;
 		      
 		   }
 		   
 		   weishi=new int[total][mark];
 		   
 		   Random r=new Random();
 		   for(int i=0;i<total;i++)//first difinity
 		   {
 			   for(int k=0;k<mark;k++)
 			   {
 				   weishi[i][k]=r.nextInt(2);
 				   if(weishi[i][k]==1) s--;
 			   }
 		   }
 	   }//sure
//---------------------------	
	 if(e.getSource()==clear)
 	   {
 		   t1.setText("");
 		   t2.setText("");
 		   t3.setText("");
 	   }
	
//-------------------	
if(e.getSource()==division)
 	   {
 		   if(t1.getText().equals("")||t2.getText().equals("")||t2.getText().equals(""))
 			   JOptionPane.showMessageDialog(this,"please found  primitive chart!");
 		   else
 		   {
 			   if(s==0)JOptionPane.showMessageDialog(this, "޿disk has no piece to distribute,please recall!");
     		   else{
 			   
 			   division_dia=new JDialog();
 		       division_dia.setTitle("the chart before distribute");
 		       division_dia.setSize(500,550);
 		       division_dia.setLayout(new FlowLayout());
 		       division_dia.setBackground(Color.red);
 		       division_la=new JDialog();
 		       division_la.setTitle("the chart after distribute");
 		       division_la.setSize(500,850);
 		       division_la.setLocation(520,1);
 		       division_la.setLayout(new FlowLayout(FlowLayout.CENTER,20,10));
 		       
 		   
 		       di1=new JTable(total+1,mark+1);
 		       JScrollPane dis1=new JScrollPane(di1);
 		       di2=new JTable(total+1,mark+1);
 		       JScrollPane dis2=new JScrollPane(di2);
 		       
 		       di1.setValueAt("wei", 0, 0);
 		       di1.setValueAt("zi0", 1, 0);
 		       
 		       di2.setValueAt("wei", 0, 0);
 		       di2.setValueAt("zi0", 1, 0);
 		       
 		       for(int i=0;i<mark;i++)
 		       {
 		           di1.setValueAt(Integer.toString(i), 0, i+1);
 		           di2.setValueAt(Integer.toString(i), 0, i+1);
 		       }
 		       
 		       for(int i=0;i<total-1;i++)
 		       {
 		    	   di1.setValueAt(Integer.toString(i+1), i+2, 0);
 		    	   di2.setValueAt(Integer.toString(i+1), i+2, 0);
 		           
 		       }
 		       
 		       for(int i=0;i<total;i++)
 		       {
 		    	   for(int k=0;k<mark;k++)
 		    	   {
 		    		   di1.setValueAt(Integer.toString(weishi[i][k]), i+1, k+1);
 		    	   }
 		    	   
 		       }
 		 
 		       division_dia.add(former);
 		       division_dia.add(dis1);//before distribute
 		       
 		       division_la.add(latter);
 		       division_la.add(dis2);
 		       
 		       division_la.add(wenjian_label);
 		       division_la.add(wenjian_field);
 		       division_la.add(count_label);
 		       division_la.add(count_field);
 		       division_la.add(fen_clear);
 		       division_la.add(exit);
 		       division_la.add(separated);
 		       division_la.add(continus);// after distribute widown
 		      
 		       pp1=new JPanel();
 		       pp1.setSize(400,200);
 		       pp1.setLocation(700,150);
 		       pp1.setLayout(new BorderLayout());
 		       pp1.add("North",l1);
 		       pp1.add("Center",area1_sc);
 		       division_la.add(pp1);
 		       
                this.setVisible(false);
 		        division_dia.setVisible(true);
 		        division_la.setVisible(true);
 		        
     		  }
 		   }// else
 		}//
	//----------------------------------------
if(e.getSource()== continus)//
 	   {
          
 		  for(int i=0;i<total;i++)
	       {
	    	   for(int k=0;k<mark;k++)
	    	   {
	    		   di1.setValueAt(Integer.toString(weishi[i][k]), i+1, k+1);
	    	   }
	    	   
	       }
	    
	      
 		   Process pro=new Process();
		   pro.count=Integer.parseInt(count_field.getText());
		   pro.name=wenjian_field.getText();
		   f_c_name=pro.name;
		 
		   pro.hang=new int[pro.count];
		   pro.lie=new int[pro.count];;
		   
		   boolean op=true,ot=true;
		   int zi_hao=0,wei_hao=0;
		   int relative_kuai,zhu_nu,cidao_nu,wuli_nu;
		   
		   int limit=0;
		   int hang,lie;
		   int coun=0;
		   op=true;ot=true;
		   for(int j=0;j<pro.count;j++)
		   {
			   
		   for(int i=0;(i<total)&&op;i++)
		   {
		    	for(int k=0;(k<mark)&&ot;k++)
		    	{
		    		if(weishi[i][k]==0)
		    		{
		    			System.out.println(coun);
		    			
		    			coun++;
		    		 }//if
		    		else coun=0;
		    		if(coun==pro.count)
		    		{   
		    			op=false;
		    			ot=false;
		    			hang=i;
		    			lie=k;
		    			pro.hang[0]=hang+1;
		    			pro.lie[0]=lie+1;
		    			weishi[hang][lie]=1;
		    			int s=mark*hang+lie;
		    			System.out.println("hang:"+hang);
	    				System.out.println("lie:"+lie);
		    			for(int m=1;m<pro.count;m++)
		    			{
		    				s--;
		    				hang=s/mark;
		    				lie=s%mark;
		    				weishi[hang][lie]=1;
		    				pro.hang[m]=hang+1;
		    				pro.lie[m]=lie+1;
		    				System.out.println("hang:"+hang);
		    				System.out.println("lie:"+lie);
		    			   
		    			}//for
		    				    			   
		    		}//if
		    	 }//for k
		    	
		    }//for i
		   }//for j
		   
		   
		   if(coun!=pro.count)
		   {
			   JOptionPane.showMessageDialog(division_la,"޿޿disk has no piece to distribute,please recall!");
			  
		   }