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