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Task/Knapsack-problem-Bounded/Java/knapsack-problem-bounded-1.java

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+package hu.pj.alg.test;
+
+import hu.pj.alg.BoundedKnapsack;
+import hu.pj.obj.Item;
+import java.util.*;
+import java.text.*;
+
+public class BoundedKnapsackForTourists {
+    public BoundedKnapsackForTourists() {
+        BoundedKnapsack bok = new BoundedKnapsack(400); // 400 dkg = 400 dag = 4 kg
+
+        // making the list of items that you want to bring
+        bok.add("map", 9, 150, 1);
+        bok.add("compass", 13, 35, 1);
+        bok.add("water", 153, 200, 3);
+        bok.add("sandwich", 50, 60, 2);
+        bok.add("glucose", 15, 60, 2);
+        bok.add("tin", 68, 45, 3);
+        bok.add("banana", 27, 60, 3);
+        bok.add("apple", 39, 40, 3);
+        bok.add("cheese", 23, 30, 1);
+        bok.add("beer", 52, 10, 3);
+        bok.add("suntan cream", 11, 70, 1);
+        bok.add("camera", 32, 30, 1);
+        bok.add("t-shirt", 24, 15, 2);
+        bok.add("trousers", 48, 10, 2);
+        bok.add("umbrella", 73, 40, 1);
+        bok.add("waterproof trousers", 42, 70, 1);
+        bok.add("waterproof overclothes", 43, 75, 1);
+        bok.add("note-case", 22, 80, 1);
+        bok.add("sunglasses", 7, 20, 1);
+        bok.add("towel", 18, 12, 2);
+        bok.add("socks", 4, 50, 1);
+        bok.add("book", 30, 10, 2);
+
+        // calculate the solution:
+        List<Item> itemList = bok.calcSolution();
+
+        // write out the solution in the standard output
+        if (bok.isCalculated()) {
+            NumberFormat nf  = NumberFormat.getInstance();
+
+            System.out.println(
+                "Maximal weight           = " +
+                nf.format(bok.getMaxWeight() / 100.0) + " kg"
+            );
+            System.out.println(
+                "Total weight of solution = " +
+                nf.format(bok.getSolutionWeight() / 100.0) + " kg"
+            );
+            System.out.println(
+                "Total value              = " +
+                bok.getProfit()
+            );
+            System.out.println();
+            System.out.println(
+                "You can carry te following materials " +
+                "in the knapsack:"
+            );
+            for (Item item : itemList) {
+                if (item.getInKnapsack() > 0) {
+                    System.out.format(
+                        "%1$-10s %2$-23s %3$-3s %4$-5s %5$-15s \n",
+                        item.getInKnapsack() + " unit(s) ",
+                        item.getName(),
+                        item.getInKnapsack() * item.getWeight(), "dag  ",
+                        "(value = " + item.getInKnapsack() * item.getValue() + ")"
+                    );
+                }
+            }
+        } else {
+            System.out.println(
+                "The problem is not solved. " +
+                "Maybe you gave wrong data."
+            );
+        }
+
+    }
+
+    public static void main(String[] args) {
+        new BoundedKnapsackForTourists();
+    }
+} // class