D:\Java\cruithne3753\games\TheQuadExampleColored.java:79: cannot find symbol
symbol  : method create(org.lwjgl.opengl.PixelFormat,org.lwjgl.opengl.ContextAttribs)
location: class org.lwjgl.opengl.Display
         Display.create(pixelFormat, contextAtrributes);
                ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:135: glGenBuffers(java.nio.IntBuffer) in org.lwjgl.opengl.GL15 cannot be applied to ()
      vboId = GL15.glGenBuffers();
                  ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:142: glGenBuffers(java.nio.IntBuffer) in org.lwjgl.opengl.GL15 cannot be applied to ()
      vbocId = GL15.glGenBuffers();
                   ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:152: glGenBuffers(java.nio.IntBuffer) in org.lwjgl.opengl.GL15 cannot be applied to ()
      vboiId = GL15.glGenBuffers();
                   ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:174: glBindAttribLocation(int,int,java.nio.ByteBuffer) in org.lwjgl.opengl.GL20 cannot be applied to (int,int,java.lang.String)
      GL20.glBindAttribLocation(pId, 0, "in_Position");
          ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:176: glBindAttribLocation(int,int,java.nio.ByteBuffer) in org.lwjgl.opengl.GL20 cannot be applied to (int,int,java.lang.String)
      GL20.glBindAttribLocation(pId, 1, "in_Color");
          ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:233: glDeleteBuffers(java.nio.IntBuffer) in org.lwjgl.opengl.GL15 cannot be applied to (int)
      GL15.glDeleteBuffers(vboId);
          ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:237: glDeleteBuffers(java.nio.IntBuffer) in org.lwjgl.opengl.GL15 cannot be applied to (int)
      GL15.glDeleteBuffers(vbocId);
          ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:241: glDeleteBuffers(java.nio.IntBuffer) in org.lwjgl.opengl.GL15 cannot be applied to (int)
      GL15.glDeleteBuffers(vboiId);
          ^
D:\Java\cruithne3753\games\TheQuadExampleColored.java:271: glShaderSource(int,java.nio.ByteBuffer) in org.lwjgl.opengl.GL20 cannot be applied to (int,java.lang.StringBuilder)
      GL20.glShaderSource(shaderID, shaderSource);
          ^
10 errors

class HeapProblem
{
  /** Max number of intersections */
  static final int MAX_INTERSECTIONS = 300;

  /** Minimal version of the actual Intersection class */
  class Intersection
  {
    double distance;
  }
  
  /** Intersections stored in a binary heap so we can quickly get them in distance order */
  protected Intersection[] inSectHeap = new Intersection[MAX_INTERSECTIONS];
  /** Index of the end of the heap */
  protected int heapEnd = -1;

  /**
   * Test it
   */
  public static void main(String[] args)
  {
    HeapProblem hp = new HeapProblem();
  }

  /**
   * Testing...
   */
  protected HeapProblem()
  {
    // Shove a load of random numbers on
    java.util.Random rand = new java.util.Random();
    for (int i = 0; i < 100; i++)
    {
      Intersection inSect = new Intersection();
      inSect.distance = rand.nextDouble() * 1000;
      addIntersection(inSect);
    }
    
    // Pull 'em off, shout if out of order
    double prevDist = 0;
    while (heapEnd >= 0)
    {
      Intersection inSect = getNextIntersection();
      System.out.println(inSect.distance + ((inSect.distance < prevDist)? " *WRONG!*" : ""));
      prevDist = inSect.distance;
    }
  }
  
  /**
   * Add intersection to heap
   * @param inSect The intersection to add
   */
  private void addIntersection(Intersection inSect)
  {
    inSectHeap[++heapEnd] = inSect;
    int index = heapEnd;
    int parent = index >> 1;

    // Bubble intersection with shortest distance to the top
    while (inSectHeap[index].distance < inSectHeap[parent].distance)
    {
      Intersection temp = inSectHeap[parent];
      inSectHeap[parent] = inSectHeap[index];
      inSectHeap[index] = temp;
      index = parent;
      parent >>= 1;
    }
  }

  /**
   * Get next nearest intersection from the heap
   * @return intersection
   */
  Intersection getNextIntersection()
  {
    Intersection next = inSectHeap[0];      // Next nearest is on top
    inSectHeap[0] = inSectHeap[heapEnd--];  // Move the end of the heap to the top
    
    // Bubble next nearest to top
    for (int index = 0; (index << 1) < heapEnd; )
    {
      int left = (index << 1) + 1;
      int right = left + 1;
      // Choose the lower of the two children
      int child = (inSectHeap[left].distance < inSectHeap[right].distance)? left : right;
      if (inSectHeap[index].distance >= inSectHeap[child].distance)
      {
        Intersection temp = inSectHeap[child];
        inSectHeap[child] = inSectHeap[index];  // Swap it with current one
        inSectHeap[index] = temp;
      }
      index = child;
    }

    return next; 
  }  

}