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(#M40167137) JAVA QUESTION Java polymorphism Keep an EYE

class Mammal
{
String name= "Dog";
String makeNoise()
{
return "Bow Wow";
}
}

class Cat extends Mammal
{
String name="Cat";
String makeNoise()
{
return "Meow";
}
}

public class Main
{
void go()
{
Mammal m = new Cat();
System.out.println(m.name + m.makeNoise());
}
public static void main (String[] args)
{
new Main().go();
}
}

What is the output of the above program?

A. CatMeow
B. DogBow Wow
C. DogMeow
D. CatBow Wow

Asked In Java Jax (3 years ago)

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(#M40167116) JAVA QUESTION Java Polymorphism question Keep an EYE

What is the output of the following program?

class Icecream
{
public void displayName(String s)
{
System.out.println(s+" "+"Icecream");
}
public void describe(String s)
{
System.out.println(s+" "+"Icecream: Ice cream is a sweetened frozen food typically eaten as a snack or dessert. ");
}
}

class Faloodeh extends Icecream
{
public void displayName(String s)
{
System.out.println(s+" "+"Faloodeh ");
}

public void describe(String s)
{
System.out.println(s+" "+"Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream ");
}
}

public class Test
{
public static void main(String arg[])
{
Icecream a = new Faloodeh();
Faloodeh b = (Faloodeh)a;
a.displayName("test");
b.displayName("test");
a.describe("test");
b.describe("test");
}
}

A. test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream
test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream
test Faloodeh
test Faloodeh

B. test Faloodeh
test Faloodeh
test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream
test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream

C. test Faloodeh
test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream
test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream
test Faloodeh

D. test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream
test Faloodeh
test Faloodeh
test Faloodeh: Faloodeh is often served alongside Persian-style dairy-based ice cream

Asked In Java Jax (3 years ago)

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(#M40167114) JAVA QUESTION Java question Keep an EYE

What will be the output of the following program?

class A
{
public void test()
{
System.out.println("Class A");
}
}
class Trial extends A
{
public void test()
{
System.out.println("Class Trial");
}
public static void main(String args[])
{
Trial object = (Trial)new A();
object.test();
}
}

A. Runtime Error
B. Compile Time Error
C. Class A
D. Class Trial

Asked In Java Jax (3 years ago)

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(#M40167113) JAVA QUESTION instanceof question Keep an EYE

What will be the output of the program?

class Tree { }

class Pine extends Tree { }

class Oak extends Tree { }

public class Forest1
{
public static void main (String [] args)
{
Tree tree = new Pine();

if( tree instanceof Pine )
System.out.println ("Pine");

else if( tree instanceof Tree )
System.out.println ("Tree");

else if( tree instanceof Oak )
System.out.println ( "Oak" );

else
System.out.println ("Oops ");
}
}

A. Oops
B. Tree
C. Pine
D. Forest

Asked In Java Jax (3 years ago)

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