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Java Java Data Structures - Retired Organizing Data Review Arrays

nazim khan
nazim khan
1,409 Points
Posted by nazim khan
nazim khan
1,409 Points

Confused with An array's length is immutable, it cannot be changed?

Hi Im bit confused with the abbve question since we can change the length of the Array using method

public static <T> T[] copyOf(T[] original, int newLength) can anyone please Explain this to me

1 Answer

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

That doesn't really change the length of an array. It creates a new array with the new length and copies the old array into it. The old array is unchanged. It's the same way Strings are immutable. You can replace a String with an entirely different one but you can't change the content of either.