WeightProgram import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class WeightProgram { private Map<String,List<Double>> weightLogs = new HashMap<String,List<Double>>(); public WeightProgram () { List<Double> log1 = new ArrayList<Double>(); List<Double> log2 = new ArrayList<Double>(); List<Double> log3 = new ArrayList<Double>(); initializeLogs(log1, log2, log3); weightLogs.put("OlaNor", log1); weightLogs.put("PerSpe", log2); weightLogs.put("EspAsk", log3); } public String biggestLooser() { String looserName = "None"; double highestLoss = Double.NEGATIVE_INFINITY; double initialWeight; double currentWeight; double prosentageWeightLoss; for (String userName : weightLogs.keySet()) { List<Double> log = weightLogs.get(userName); initialWeight = log.get(0); currentWeight = log.get(log.size()-1); prosentageWeightLoss = 100 - ((100/initialWeight)*currentWeight); if(prosentageWeightLoss > highestLoss) { looserName = userName; highestLoss = prosentageWeightLoss; } } return looserName; } private void initializeLogs(List<Double> log1, List<Double> log2, List<Double> log3) { log1.add(95.0); log1.add(93.1); log1.add(87.9); log2.add(123.0); log2.add(119.1); log2.add(115.9); log3.add(102.0); log3.add(100.1); log3.add(98.3); } }
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(28) Bruker metoden keySet() som returnerer alle nøklene HashMapet har, (32) Henter element på plass 0 fra ArrayList. |
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