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I've looked through several solutions and I'm quite surprised. If the problem involves handling pairs and they're already split into two arrays, why combine them back into a single string? Instead, there's a more elegant approach using the SimpleEntry class. You can simply use
Set<AbstractMap.SimpleEntry<String, String>> uniquePairs = new HashSet<>();
to handle the pairs directly.
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Java Hashset
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I've looked through several solutions and I'm quite surprised. If the problem involves handling pairs and they're already split into two arrays, why combine them back into a single string? Instead, there's a more elegant approach using the SimpleEntry class. You can simply use
Set<AbstractMap.SimpleEntry<String, String>> uniquePairs = new HashSet<>();to handle the pairs directly.