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Height Map/Part A/HeightMap.java

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+public class HeightMap
+{
+  /** A two-dimensional array of height values, initialized in the constructor
+    * Guaranteed not to be null
+    */
+  private double[][] heights;
+
+  /** @param r a valid row index in heights
+    * @param c a valid column index in heights
+    * @return true if the height at row r, column c is not at the edge of the
+    * two-dimensional array heights, and is greater in value than all 8 surrounding
+    * values; false otherwise.
+    */
+  public boolean isPeak(int r, int c)
+  {
+    if(r == 0 || c == 0 || r == heights.length - 1 || c == heights[r].length - 1) {
+      return false;
+    }
+    
+    //double h = heights[r][c];
+    return true;
+  }
+
+  /* Methods for subsequent parts of this question are not shown */
+
+  /* CLASS MEMBERS FOR TESTING */
+  /* DO NOT MODIFY ANY OF THE CONSTRUCTORS OR METHODS BELOW*/
+
+  public HeightMap(double[][] h){
+    heights = h;
+  }
+
+}

Warehouse/Part A/Product.java

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+public class Product
+{
+
+  private final String productCode;
+  private int quantityInStock;
+
+  /** @return the code of this product
+   */
+  public String getProductCode()
+  {
+    return productCode;
+  }
+
+  /** @return the current quantity in stock of this product. This should never be negative.
+   */
+  public int getQuant()
+  {
+    return quantityInStock;
+  }
+
+  /** Sets the current quantity in stock of this product to the parameter value
+   */
+  public void setQuant(int quantity)
+  {
+    quantityInStock = quantity;
+  }
+
+
+  /* CLASS MEMBERS FOR TESTING */
+  /* DO NOT MODIFY ANY OF THE CONSTRUCTORS OR METHODS BELOW */
+  public Product(String det)
+  {
+    productCode = det.split("/")[0];
+    quantityInStock = Integer.parseInt(det.split("/")[1]);
+  }
+
+}

Warehouse/Part A/Warehouse.java

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+public class Warehouse
+{
+  private Product[][] stock;
+
+
+  /** Attempts to fulfill an order by decreasing the quantity in stock of a product with the
+   *  specified productCode by the quantity requested. This is only completed if a
+   *  Product with the code desired is found with  quantity in stock greater than or equal
+   *  to the quantity requested.
+   *  @param code the product code to search for in stock
+   *  @param orderQuant the quantity requested of this product
+   *  @return true if the order is completed; false otherwise.
+   */
+  public boolean fulfillOrder(String code, int orderQuant)
+  {
+    /* Implement your answer to part (a) here */
+    for(Product[] row : stock) {
+      for(Product p : row) {
+        if(p.getProductCode().equals(code)) {
+          if(p.getQuant() >= orderQuant) {
+            p.setQuant(p.getQuant() - orderQuant);
+            return true;
+          } else {
+            return false;
+          }
+        } else {
+          return false;
+        }
+      }
+    }
+    
+    return false;
+  }
+
+
+  /* Methods for subsequent parts of this question are not shown */
+
+  /* CLASS MEMBERS FOR TESTING */
+  /* DO NOT MODIFY ANY OF THE CONSTRUCTORS OR METHODS BELOW */
+
+  public Product[][] getStock()
+  {  return stock;  }
+
+  public Warehouse(Product[][] s)
+  {  stock = s;  }
+
+}