While working need a structure like Pair in java so tired to emulate the behavior using AbstractMap.SimpleEntry<>() and a technique shared by @starbuxman in his tweet about creating tuple using new Object(){} implementation.
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| class Day35 {
public static void main(String[] args) {
DoubleStream doubleStream = DoubleStream.iterate(1.0 , d -> d+0.5);
List<AbstractMap.SimpleEntry<Double, Double>> pairs = doubleStream
.limit(10)
.mapToObj(number -> new AbstractMap.SimpleEntry<>(new Random().nextDouble(), number))
.collect(Collectors.toList());
pairs.forEach(pair -> {
System.out.println(pair.getKey());
System.out.println(pair.getValue());
});
Stream.generate(() -> new Random().nextDouble())
.limit(10)
.map(lon -> new Object() {
double lattitude = new Random().nextDouble();
double longitude = lon;
}).forEach(tuple -> {
System.out.println(tuple.lattitude);
System.out.println(tuple.longitude);
});
}
}
|