T- type class. This is a marker parameter that is not reflected in the signatures, but can be respected by methods requiring type information.
public interface ArrayWritable<T>
Collection.toArray(Object)method in the following way:
offset > 0.
num < size()is unspecified.
System.arraycopy(this.toArray(), offset, array, tgtOfs, num);
offset- how many elements of this container to skip.
array- the array in which to store the elements.
tgtOfs- the starting offset in the target array.
num- the maximum number of elements to copy.
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