yi jiang yi jiang - 1 year ago 92
Java Question

when i use Java 8 Stream.of primitive type, the result is confused

byte[] a = {1,2,3};

Byte[] b = {1,2,3};

the result is 1 and 3, why?

Answer Source

Stream.of only accepts Objects as its arguments. A byte isn't an Object, but a byte array is. If a is an array of byte, then Stream.of(a) can only mean "stream of this one object, which is an array".

If you have a Byte[] array, then each element of the array is an object, so the compiler can guess that's what you mean.

There is information here about how you can stream a byte array: In Java 8, is there a ByteStream class?

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