Import static java. lang. System.*; import static java. lang. Math.*;

public class OOPTestReview
{
public static void main (String [] args)
{
Dog1 woof = new Dog1(28,5,10);
woof. printStuff();
woof. printStuff2();
woof. printStuff3();
woof. doStuff();
woof. printStuff2();
}
}

class Dog1
{
private int teeth, legs, spots, weight;

public Dog1()
{
teeth = 30;
legs = 3;
spots = 8;
weight = 30;
}

public Dog1(int tth, int spt, int wt)
{
teeth = tth;
legs = 4;
spots = spt;
weight = wt;
}

public void doStuff()
{
teeth = teeth + 1;
}

public int doStuffTwo()
{
int cow;
cow = spots + legs;
return cow;
}

public int doStuffThree(int x)
{
weight = weight + x;
return weight;
}

public int doStuffFour(int x)
{
legs = doStuffThree(teeth) + x;
return legs;
}

public void printStuff()
{
out. println(doStuffThree(3));
}

public void printStuff2()
{
out. println(doStuffFour(spots));
}

public void printStuff3()
{
out. println(doStuffTwo());
}
}

What is the output of line 9?

What is the output of line 10?

What is the output of line 11?

There is no output for line 12.
true/false

What is the output of line 13?