Data commit

Task/Knapsack-problem-0-1/Java/knapsack-problem-0-1-1.java

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+package hu.pj.alg.test;
+
+import hu.pj.alg.ZeroOneKnapsack;
+import hu.pj.obj.Item;
+import java.util.*;
+import java.text.*;
+
+public class ZeroOneKnapsackForTourists {
+
+    public ZeroOneKnapsackForTourists() {
+        ZeroOneKnapsack zok = new ZeroOneKnapsack(400); // 400 dkg = 400 dag = 4 kg
+
+        // making the list of items that you want to bring
+        zok.add("map", 9, 150);
+        zok.add("compass", 13, 35);
+        zok.add("water", 153, 200);
+        zok.add("sandwich", 50, 160);
+        zok.add("glucose", 15, 60);
+        zok.add("tin", 68, 45);
+        zok.add("banana", 27, 60);
+        zok.add("apple", 39, 40);
+        zok.add("cheese", 23, 30);
+        zok.add("beer", 52, 10);
+        zok.add("suntan cream", 11, 70);
+        zok.add("camera", 32, 30);
+        zok.add("t-shirt", 24, 15);
+        zok.add("trousers", 48, 10);
+        zok.add("umbrella", 73, 40);
+        zok.add("waterproof trousers", 42, 70);
+        zok.add("waterproof overclothes", 43, 75);
+        zok.add("note-case", 22, 80);
+        zok.add("sunglasses", 7, 20);
+        zok.add("towel", 18, 12);
+        zok.add("socks", 4, 50);
+        zok.add("book", 30, 10);
+
+        // calculate the solution:
+        List<Item> itemList = zok.calcSolution();
+
+        // write out the solution in the standard output
+        if (zok.isCalculated()) {
+            NumberFormat nf  = NumberFormat.getInstance();
+
+            System.out.println(
+                "Maximal weight           = " +
+                nf.format(zok.getMaxWeight() / 100.0) + " kg"
+            );
+            System.out.println(
+                "Total weight of solution = " +
+                nf.format(zok.getSolutionWeight() / 100.0) + " kg"
+            );
+            System.out.println(
+                "Total value              = " +
+                zok.getProfit()
+            );
+            System.out.println();
+            System.out.println(
+                "You can carry the following materials " +
+                "in the knapsack:"
+            );
+            for (Item item : itemList) {
+                if (item.getInKnapsack() == 1) {
+                    System.out.format(
+                        "%1$-23s %2$-3s %3$-5s %4$-15s \n",
+                        item.getName(),
+                        item.getWeight(), "dag  ",
+                        "(value = " + item.getValue() + ")"
+                    );
+                }
+            }
+        } else {
+            System.out.println(
+                "The problem is not solved. " +
+                "Maybe you gave wrong data."
+            );
+        }
+
+    }
+
+    public static void main(String[] args) {
+        new ZeroOneKnapsackForTourists();
+    }
+
+} // class