Increasing Array size

[rajesh kumar rayavarapu]

Hi, iam new to the java.
How to increase the array size dynamically?

means if i take arry[3]={0,1,2} and then i want insert 3 in the same arry.Please send to me i have faced this question in one of the interview.

thans,
rajesh

[fred rosenberger]

you can't. once an array is declared, its size is fixed.

you have the option of declaring a new array, copying over all the values, and re-assigning the reference, however.

or you could use an arraylist instead.