Question: Write a method public static ArrayList append(ArrayList a, ArrayList b) that appends one array list after another. For example, if a is 1 4 9

Write a method

public static ArrayList append(ArrayList a, ArrayList b)

that appends one array list after another. For example, if a is 1 4 9 16 and b is 9 7 4 9 11 then append returns the array list
1 4 9 16 9 7 4 9 11

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