Assertions

	For each of the five points labeled by comments, identify each of the following assertions as being either ALWAYS true, NEVER true or SOMETIMES true / SOMETIMES false. 

public static int mystery(int x) {
	int y = 0;
	int z = 1;
	<span class="assertionpoint">// Point A
	if(x % 2 == 0) {
		x--;
		z++;
		<span class="assertionpoint">// Point B
	}
	while(y < x) {
		<span class="assertionpoint">// Point C
		z = z + 2;
		y = y + z;
		<span class="assertionpoint">// Point D
	}
	<span class="assertionpoint">// Point E
	return y;
}

1) y < x 

2) x % 2 == 0

3) z % 2 == 0