Accessor Methods

public class Group {
    private int[] data;
    public Group(int[] d) {
        data = new int[d.length];
        for (int i = 0; i < d.length; i++) data[i] = d[i];
    }
    public int[] getData() {
        int[] copy = new int[data.length];
        for (int i = 0; i < data.length; i++) copy[i] = data[i];
        return copy;
    }
}
// ...
int[] a = {1, 2, 3};
Group g = new Group(a);
int[] view = g.getData();
view[1] = 100;
System.out.println(a[1] + "," + g.getData()[1]);

• A

  2,100

• B

  100,100

• C

  100,2

• D

  2,2

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