Question

I want to use String’s subsequence method in blackberry which is given in java API but not present in Blackberry API. Here is the method :

String.subSequence(int beginIndex, int endIndex)

I want to use that method so how should it be possible if I cant access that API. Can u please post the code/url with code/api in Blackberry which will perform same function like subsequence method.

Answer 1

Java SE’s subSequence is implemented in java.lang.String just because String was made to implement CharSequence interface. If you read the docs, it says:

An invocation of this method of the form
str.subSequence(begin, end)
behaves in exactly the same way as the invocation
str.substring(begin, end)
This method is defined so that the String class can implement the CharSequence interface.

So in BlackBerry, as there’s no CharSequence interface because it was introduced in Java 1.4, you can use substring instead with identical result.