Question: 3 Modify Pair.java so that both first and second are of the same type. Then, add the method public void swap() to Pair class. Swap

3 Modify Pair.java so that both first and second are of the same type. Then, add the method public void swap() to Pair class. Swap method should swap the first and second elements of the

3 Modify Pair.java so that both first and second are of the same type. Then, add the method public void swap() to Pair class. Swap method should swap the first and second elements of the pair. Modify PairDemo to pair Romeo and Juliet as one pair and Adam and Eve as a second pair. Call swap on the Romeo and Juliet pair. Print both pairs. Turn in your revised Pair and PairDemo java files

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