JAVA Interfaces and Abstract Classes What will be the output for the below code ?public interface TestInf{ int i =10;}public class Test{ public static void main(String... args){ TestInf.i=12; System.out.println(TestInf.i); }} Compile with error Runtime Exception 10 None of these 12 Compile with error Runtime Exception 10 None of these 12 ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes Which of the following declares an abstract method in an abstract Java class? public abstract method(); public abstract void method(); public void abstract Method(); public void method() {} public abstract void method() {} public abstract method(); public abstract void method(); public void abstract Method(); public void method() {} public abstract void method() {} ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes What will be the output?interface A{public void method();}class One{public void method(){System.out.println("Class One method");}}class Two extends One implements A{public void method(){System.out.println("Class Two method");}}public class Test extends Two{public static void main(String[] args){A a = new Two();a.method();}} compiles fine but print nothing will print Class One method None of these will print Class Two method Compilation Error compiles fine but print nothing will print Class One method None of these will print Class Two method Compilation Error ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes interface Base{ boolean m1 (); byte m2(short s);}which two code fragments will compile?1. interface Base2 implements Base {}2. abstract class Class2 extends Base { public boolean m1(){ return true; }}3. abstract class Class2 implements Base {}4. abstract class Class2 implements Base { public boolean m1(){ return (7 > 4); }}5. abstract class Class2 implements Base { protected boolean m1(){ return (5 > 7) }} 3 and 4 4 and 5 1 and 3 2 and 3 1 and 2 3 and 4 4 and 5 1 and 3 2 and 3 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes Suppose A is an abstract class, B is a concrete subclass of A, and both A and B have a default constructor. Which of the following is correct?1. A a = new A();2. A a = new B();3. B b = new A();4. B b = new B(); 2 and 3 3 and 4 2 and 4 1 and 3 1 and 2 2 and 3 3 and 4 2 and 4 1 and 3 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
JAVA Interfaces and Abstract Classes interface Test{ int p = 10; //line 1 public int q = 20; //line 2 public static int r = 30; //line 3 public static final int s = 40; //line 4}Which of the above line will give compilation error? 4 2 1 None of these 3 4 2 1 None of these 3 ANSWER DOWNLOAD EXAMIANS APP
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