Easy way to transform Collection to Array?

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Easy way to transform Collection to Array?
2 Answer(s)      15 days ago
Posted in : Java Beginners

hello,

Is there easy way to get Array object from collection in Java? Easy way to transform Collection to Array?

Thanks

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April 13, 2017 at 9:21 AM


Hi,

Suppose you have a collection with the name myCol then you can use the following code:

 String[] myArray = myCol.toArray(new String[0]);

Above is using Java 7. But you can also do like this in Java 8:

String[] result = myCol.stream()
    .map(x -> new String(x))
    .toArray(size -> new String[size]);

Above code is using the stream in Java 8.

Thanks



April 13, 2017 at 9:23 AM


Hi,

We have huge collection of Java util package examples check all at Java Util Examples.

Thanks


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