A-M baby

Task/Knapsack-problem-Continuous/Java/knapsack-problem-continuous-1.java

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+package hu.pj.alg.test;
+
+import hu.pj.alg.ContinuousKnapsack;
+import hu.pj.obj.Item;
+import java.util.*;
+import java.text.*;
+
+public class ContinousKnapsackForRobber {
+    final private double tolerance = 0.0005;
+
+    public ContinousKnapsackForRobber() {
+        ContinuousKnapsack cok = new ContinuousKnapsack(15); // 15 kg
+
+        // making the list of items that you want to bring
+        cok.add("beef",     3.8, 36); // marhahús
+        cok.add("pork",     5.4, 43); // disznóhús
+        cok.add("ham",      3.6, 90); // sonka
+        cok.add("greaves",  2.4, 45); // tepertő
+        cok.add("flitch",   4.0, 30); // oldalas
+        cok.add("brawn",    2.5, 56); // disznósajt
+        cok.add("welt",     3.7, 67); // hurka
+        cok.add("salami",   3.0, 95); // szalámi
+        cok.add("sausage",  5.9, 98); // kolbász
+
+        // calculate the solution:
+        List<Item> itemList = cok.calcSolution();
+
+        // write out the solution in the standard output
+        if (cok.isCalculated()) {
+            NumberFormat nf  = NumberFormat.getInstance();
+
+            System.out.println(
+                "Maximal weight           = " +
+                nf.format(cok.getMaxWeight()) + " kg"
+            );
+            System.out.println(
+                "Total weight of solution = " +
+                nf.format(cok.getSolutionWeight()) + " kg"
+            );
+            System.out.println(
+                "Total value (profit)     = " +
+                nf.format(cok.getProfit())
+            );
+            System.out.println();
+            System.out.println(
+                "You can carry the following materials " +
+                "in the knapsack:"
+            );
+            for (Item item : itemList) {
+                if (item.getInKnapsack() > tolerance) {
+                    System.out.format(
+                        "%1$-10s %2$-15s %3$-15s \n",
+                        nf.format(item.getInKnapsack()) + " kg ",
+                        item.getName(),
+                        "(value = " + nf.format(item.getInKnapsack() *
+                                                (item.getValue() / item.getWeight())) + ")"
+                    );
+                }
+            }
+        } else {
+            System.out.println(
+                "The problem is not solved. " +
+                "Maybe you gave wrong data."
+            );
+        }
+
+    }
+
+    public static void main(String[] args) {
+        new ContinousKnapsackForRobber();
+    }
+
+} // class