Accessing arrays with methods

Question

Hi guys i\'m just starting to learn Java, and I wondering how can I access an array that was declared in a method from another method? The design look like this:

Answer 1

There a two options:

• You declare that array as instance variable

public class Arrays {

    private int arraySize = 2;
    private float array[];// Declare array

    public void initializeArray() {
        array = new float[arraySize];
    }

    public void accessArray() {
        // I want to access the array from this method.
        float first = array[0];
    }
}

• You pass the array as parameter to the method (resp. the initializeArray method should return an array)

public class Arrays {

    public static void main(String[] args) {
        int arraySize = 2;
        float[] array = initializeArray(arraySize);
        accessArray(array);
    }

    public static float[] initializeArray(int size) {
        return new float[size];
    }

    public static void accessArray(float[] floats) {
        // I want to access the array from this method.
        float first = floats[0];
    }
}