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There are five classes class 1, class 2, class 3, class 4 and class 5 in a school. They are one above the other. Class 1 is at the bottom, then class 2 above it and so on. Five videos M1, M2, M3, M4 and M5 are displayed in these given classes. Only one video is displayed in a particular class. Each video is displayed only one time. Video M5 is displayed at an even numbered class. Video M2 is displayed at class 1. Video M1 is displayed at the class just below M5. Video M4 is not displayed at even numbered class. Which of the following statement is not correct?
The visibility of a property or method can be defined by prefixing the declaration with the keywords public, protected or private. Class members declared public can be accessed everywhere. Members declared protected can be accessed only within the class itself and by inherited classes. Members declared as private are not accessible.
Which access modifier allows a class member to be accessed within the same package and its subclasses?
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(); } }
Consider the following statements : A = If n is even, then n2 is even. B = If n2 is not even, n is not even. C = If n2 is even, then n is even. D = If n is not even, then n2 is not even. Which of the following statements is true?
What will be the output? class A{ static void method(){ System.out.println("Class A method"); } } class B extends A{ static void method(){ System.out.println("Class B method"); } } public class Test{ public static void main(String args[]){ A a = new B(); a.method(); } }
In a class of 100 students, every student has passed in one or more of the three subjects, i.e History, Economics and English. Among all the student, 24 students have passed in English only, 14 students have passed in History only 11 students have passed in both English and Economics only, and 12 students have passed in both English and History only. A total of 50 students have passed in History. If only 5 students have passed in all three subjects, then how many students have passed in Economies only?
Which access modifier restricts a class member's visibility only to the same class and its subclasses?
Which access modifier restricts a class member's visibility to only the same class, its package, and subclasses?
In Java, what access modifier is used to specify that a class member can be accessed only within its class?