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Two Set collections get the same elements
2022-08-06 14:32:55【gentleman jiejie】
Use retainAll() method, sample code:
Set<String> set1 =span> new HashSet<>();set1.add("1");set1.add("2");set1.add("6");Set<String> set2 = newspan> HashSet<>();set2.add("2");set2.add("5");set2.add("6");set1.retainAll(set2);set1.forEach(item -> System.out.println(item));
The result is as follows:
author[gentleman jiejie],Please bring the original link to reprint, thank you.
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