JAVA Interfaces and Abstract Classes Runnable is a _____ . vaiable method interface class abstract class vaiable method interface class abstract class ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes What will happen after compiling this program code?abstract class MyClass{ //line 1 private int a, b; public void call(int a, int b){ this.a = a; this.b = b; System.out.print(a+b); }}public class Test{ public static void main(String args[]){ MyClass m = new MyClass(); //line 2 m.call(12,25); }} Successful run and print 37 None of these Compilation error due to line 1 Runtime error Compilation error due to line 2 Successful run and print 37 None of these Compilation error due to line 1 Runtime error Compilation error due to line 2 ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes What is the output for the below code ?interface A{ public void printValue();}1. public class Test{2. public static void main (String[] args){3. A a1 = new A(){4. public void printValue(){5. System.out.println("A");6. }7. };8. a1.printValue();9. }10. } A Compilation fails due to an error on line 3 None of these Compilation fails due to an error on line 8 null A Compilation fails due to an error on line 3 None of these Compilation fails due to an error on line 8 null ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes Which of the following is a correct interface? abstract interface A { abstract void print(); { }} abstract interface A { print(); } interface A { void print(); } interface A { void print() { } } abstract interface A { abstract void print(); { }} abstract interface A { print(); } interface A { void print(); } interface A { void print() { } } ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes Given the following piece of code:public class School{ public abstract double numberOfStudent();}which of the following statements is true? The method numberOfStudent() in class School must have a body. Class School must be defined abstract. You must add a return statement in method numberOfStudent(). The keywords public and abstract cannot be used together. The method numberOfStudent() in class School must have a body. Class School must be defined abstract. You must add a return statement in method numberOfStudent(). The keywords public and abstract cannot be used together. ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes What will be the output?1. public interface InfA{2. protected String getName();3. }public class Test implements InfA{ public String getName(){ return "test-name"; } public static void main (String[] args){ Test t = new Test(); System.out.println(t.getName()); }} None of these test-name Compilation succeed but Runtime Exception Compilation fails due to an error on lines 2 Compilation fails due to an error on lines 1 None of these test-name Compilation succeed but Runtime Exception Compilation fails due to an error on lines 2 Compilation fails due to an error on lines 1 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS