Java method to determine whether a specific value is in an array

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Release： 2019-11-26 10:00:18

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Java method to determine whether a specific value is in an array

Java method to determine whether a specific value is in an array:

Use List:

public static boolean useList(String[] arr, String targetValue) { return Arrays.asList(arr).contains(targetValue); }

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Use Set:

public static boolean useSet(String[] arr, String targetValue) { Set set = new HashSet(Arrays.asList(arr)); return set.contains(targetValue); }

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Use Simple loop statement:

public static boolean useLoop(String[] arr, String targetValue) { for (String s : arr) { if (s.equals(targetValue)) return true; } return false; }

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