Pre-thread change

Code/P1.java

@@ -1,4 +1,5 @@
 import java.util.*;
+import java.util.concurrent.Semaphore;
 import java.io.*;
 
 public class P1 {
@@ -10,6 +11,8 @@ public class P1 {
  * Student Number: c3262201
  */
     
+    LinkedList<Thread> WARs = new LinkedList<Thread>();
+    Semaphore intersection = new Semaphore(1, true);
  /**
      * Main. Runs the program
      */
@@ -20,7 +23,135 @@ public class P1 {
 
     public void run()
     {
-
+        readFile("../P1-1in.txt");
+        printState();
     }
 
+    /**
+     * readFile. Reads the file given, creating processes as needed to save details.
+     * @param fileNameInput address of the file to be read in.
+     */
+    public void readFile(String input)
+    {
+        Scanner fileReader; //Scanner to read the file.
+        File dataInput;// = new File(fileNameInput);
+
+        dataInput = new File(input);
+
+        //Try and open file. If it works, procede.
+        try {
+            fileReader = new Scanner(dataInput);
+
+            //Assuming only one line in file.
+            String line = fileReader.nextLine();
+
+            int warNum = 1;
+            for (int charNum = 0; charNum < line.length(); charNum++)
+            {
+                if(line.charAt(charNum)=='N')
+                {
+                    charNum+=2;
+                    int inputID = line.charAt(charNum) - '0';
+
+                    for(int i = 0; i< inputID; i++)
+                    {
+                        
+                        //WARs.add(new P1_War(warNum, 2, false, intersection));
+                        warNum++;
+                    }
+                }      
+                else if(line.charAt(charNum)=='S')
+                {
+                    charNum+=2;
+                    int inputID = line.charAt(charNum) - '0';
+
+                    for(int i = 0; i< inputID; i++)
+                    {
+                        WARs.add(new P1_War(warNum, 2, true, intersection));
+                        warNum++;
+                    }
+                }  
+                else if(line.charAt(charNum)=='E')
+                {
+                    charNum+=2;
+                    int inputID = line.charAt(charNum) - '0';
+
+                    for(int i = 0; i< inputID; i++)
+                    {
+                        WARs.add(new P1_War(warNum, 1, false, intersection));
+                        warNum++;
+                    }
+                }  
+                else if(line.charAt(charNum)=='W')
+                {
+                    charNum+=2;
+                    int inputID = line.charAt(charNum) - '0';
+
+                    for(int i = 0; i< inputID; i++)
+                    {
+                        WARs.add(new P1_War(warNum, 1, true, intersection));
+                        warNum++;
+                    }
+                }                                                                         
+            }
+            fileReader.close();
+        } 
+        
+        //If the file isn't found, throw a hissy fit.
+        catch (FileNotFoundException e) {
+            System.out.println("File not found.");
+            System.exit(0);
+            //e.printStackTrace();  //Optional, shows more data.
+        }
+    }   
+
+    public void printState()
+    {
+        System.out.print("(E) WARs at Storage 1: ");
+        int storage1 = 0;
+        for (int i = 0; i<WARs.size(); i++)
+        {
+            if((WARs.get(i).getTrackNum()==1)&&(WARs.get(i).getAtDock()==false))
+            {
+                storage1++;
+                System.out.print("WAR"+WARs.get(i).getID()+", ");
+            }
+        }
+        System.out.println("Total: " + storage1);
+
+        System.out.print("(W) WARs at Dock 1: ");
+        int dock1 = 0;
+        for (int i = 0; i<WARs.size(); i++)
+        {
+            if((WARs.get(i).getTrackNum()==1)&&(WARs.get(i).getAtDock()==true))
+            {
+                dock1++;
+                System.out.print("WAR"+WARs.get(i).getID()+", ");
+            }
+        }
+        System.out.println("Total: " + dock1);        
+        System.out.print("(N) WARs at Storage 2: ");
+        int storage2 = 0;
+        for (int i = 0; i<WARs.size(); i++)
+        {
+            if((WARs.get(i).getTrackNum()==2)&&(WARs.get(i).getAtDock()==false))
+            {
+                storage2++;
+                System.out.print("WAR"+WARs.get(i).getID()+", ");
+            }
+        }
+        System.out.println("Total: " + storage2);
+
+        System.out.print("(S) WARs at Dock 2: ");
+        int dock2 = 0;
+        for (int i = 0; i<WARs.size(); i++)
+        {
+            if((WARs.get(i).getTrackNum()==2)&&(WARs.get(i).getAtDock()==true))
+            {
+                dock2++;
+                System.out.print("WAR"+WARs.get(i).getID()+", ");
+            }
+        }
+        System.out.println("Total: " + dock2); 
+    }    
 }