In Java please.

Consider the following method:

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1) public static void funcArray(int[] a) {

for (int i = 1; i < a.length; i++) {

a[i] = i + a[i - 1] - a[i];

}

}

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Compute the contents of following arrays a1-3:

int[] a1 = {7, 3}; funcArray(a1);

int[] a2 = {4, 3, 6}; funcArray(a2);

int[] a3 = {2, 4, -1, 6, -2, 8}; funcArray(a3);

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2)

public static int threeHeads() {

// Counts coin tosses till we get heads 3x in a row.

Random rand = new Random();

int flip = 1;

int heads = 0;

int count = 0;

// Point A

while (heads < 3) {

// Point B

flip = rand.nextInt(2); // flip coin

if (flip == 0) { // heads

heads++;

// Point C

} else { // tails

// Point D

heads = 0;

}

count++;

}

// Point E

return count;

}

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Write a Unit test harness for the five checkpoints A-E.