unit 3 practice question set 8

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x =2;
    int y =3;

    System.out.println(x + " + "+ y + " = " +adder(y,x));
   }

 public static int adder(int x, int y)
 {
    return x+y;
 }
}

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x =2;
    int y =3;
    int answer = subtracter(x,y);

    System.out.println(x + " - "+ y + " = " +answer);
   }

 public static int subtracter(int x, int y)
 {
    return x-y;
 }
}

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x =2;
    int y =3;
    int answer = subtracter(y,x);

    System.out.println(x + " - "+ y + " = " +answer);
   }

 public static int subtracter(int x, int y)
 {
    return x-y;
 }
}

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x = 5;
int y = 2;

System.out.println(mystery(x,y));
   }

 public static int mystery(int x, int y)
 {
    return x+y;
 }

public static double mystery(double x, double y)
{
  return x-y;
}

public static double mystery(double x, int y)
{
  return x/y;
}

public static int mystery(int a)
{
  return (int)(Math.pow(a,2));
}
}

• 3.5

• 2.5

• 7

• error

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x = 5;
int y = 2;

System.out.println(mystery(x));
   }

 public static int mystery(int x, int y)
 {
    return x+y;
 }

public static double mystery(double x, double y)
{
  return x-y;
}

public static double mystery(double x, int y)
{
  return x/y;
}

public static int mystery(int a)
{
  return (int)(Math.pow(a,2));
}
}

• error

• 25

• 3.5

• 7

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    double x = 5;
double y = 2;

System.out.println(mystery(x, y));
   }

 public static int mystery(int x, int y)
 {
    return x+y;
 }

public static double mystery(double x, double y)
{
  return x-y;
}

public static double mystery(double x, int y)
{
  return x/y;
}

public static int mystery(int a)
{
  return (int)(Math.pow(a,2));
}
}

• error

• 7

• 2.5

• 3.0

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    double x = 5;
int y = 2;

System.out.println(mystery(x,y));
   }

 public static int mystery(int x, int y)
 {
    return x+y;
 }

public static double mystery(double x, double y)
{
  return x-y;
}

public static double mystery(double x, int y)
{
  return x/y;
}

public static int mystery(int a)
{
  return (int)(Math.pow(a,2));
}
}

• error

• 2.5

• 3.0

• 25

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x = 2;
    int y = 3;
    changer(x,y);

    System.out.println(x + " "+ y);
   }

 public static void changer(int x, int y)
 {
    x=4;
y=6;
 }
}

public class TestClass
{
 public static void main(String[] args)
 {
    int x = 2;
    int y = 3;
    y = changer(x);

    System.out.println(x + " "+ y);
   }

 public static int changer(int x)
 {
    x=4;
return 7;
 }
}

What is the output of the below code?

public class TestClass
{
 public static void main(String[] args)
 {
    int x = 5;
double y = 2;

System.out.println(mystery(x,y));
   }

 public static int mystery(int x, int y)
 {
    return x+y;
 }

public static double mystery(double x, double y)
{
  return x-y;
}

public static double mystery(double x, int y)
{
  return x/y;
}

public static int mystery(int a)
{
  return (int)(Math.pow(a,2));
}
}

• 2.5

• 3.0

• 25

• error