public static void main(String args[]) {
Map<String, String> in = new HashMap<>();
in.put("val1", "10.0");
in.put("val2", "60.0");
Map<String, Float> mOriginal = filterLoadedValues(in);
Map<String, Float> mLambda = filterLoadedValuesLambda(in);
System.out.println("\nOriginal Entries\n--");
mOriginal.entrySet().stream().forEach(TransformMap::printEntry);
System.out.println("\nLambda Entries\n--");
mLambda.entrySet().stream().forEach(TransformMap::printEntry);
}
public static Map filterLoadedValuesLambda(Map<String, String> in) {
return in.entrySet()
.stream()
.collect(
Collectors.toMap(
e -> e.getKey().toString(), e -> Float.valueOf(e.getValue().toString())));
}
public static Map filterLoadedValues(Map<String, String> in) {
Map<String, Float> out = new HashMap<>();
for (Iterator iterator = in.entrySet().iterator(); iterator.hasNext(); ) {
Map.Entry entry = (Map.Entry) iterator.next();
out.put(entry.getKey().toString(), Float.valueOf(entry.getValue().toString()));
}
return out;
}