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I am having trouble trying to figure out how to increase size a of an array A so that A has a large enough buffer at the end to hold an array B.

Assuming the two sorted arrays are A = {1, 3, 5} and B = {2, 4, 6, 8}

A = {1, 3, 5, 0, 0, 0, 0} and B = {2, 4, 6, 8} where A has buffer {0, 0, 0, 0} at the end to hold B

Roman
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Nikhilesh Sharma
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2 Answers2

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You cannot resize an array, you have to either construct a new array with the size of both arrays combined, or use another data structure (e.g. ArrayList).

Also see: Make copy of array in Java

Community
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Dimitrios Begnis
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If you are using a literal array you have no chance of increasing its size in place. You must create a new array and copy A over it, perhaps by using System.arrayCopy.

Paolo Bernardi
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