- stream
- Array
stream轉陣列
public static void main(String[] args) {
Stream<String> stream1 = Stream.of("Hello","Duke","Java");
Stream<Integer> stream2 =Stream.of(1,2,3,4);
String[] array1 = stream1.toArray(String[]::new);
Integer[] array2 = stream2.toArray(Integer[]::new);
}
IntStream轉陣列
public static void main(String[] args) {
int [] array1 = IntStream.range(0, 5).toArray();
Integer [] array2 = IntStream.range(0, 5).boxed().toArray(Integer[] ::new);
}
結論
留意當前stream，若為IntStream則可直接使用toArray方法
若為Stream<T>，則需進行陣列的生成
Referance