To fix this, wrap it in a new ArrayList: List<String> list = new ArrayList<> (Arrays.asList (array)); This creates a real, independent list you can modify. 2. Use EnumSet for performance Do you store ...

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You can now use cleaner, more expressive alternatives to common coding patterns. Three useful additions are: - structuredClone () - Array.prototype.at () - Array.prototype.findLast () These features ...