Calling a Void Method Practice

Sample questions

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1. Sample 1difficulty 1/5

   public class Printer {
       public void greet() {
           System.out.print("Hi");
       }
   }
   // ...
   Printer p = new Printer();
   int x = p.greet();

   What is the result?

   • A

     0

   • B

     null

   • C

     Hi

   • D

     Compile-time error

     check_circle

   Why

   A void method has no return value, so it cannot be assigned to an int variable.

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2. Sample 2difficulty 3/5

   Given <code>Dog d = new Dog("Rex");</code>, you call its bark method by

   • A

     bark.d()

   • B

     d.bark()

     check_circle
   • C

     Dog.bark()

   • D

     d->bark()

   Why

   Instance method via dot notation; static would use <code>Dog.method()</code>.

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