Podcast
Questions and Answers
Which keyword in Java is used to point to the current instance of a method or a constructor?
Which keyword in Java is used to point to the current instance of a method or a constructor?
- object
- this (correct)
- super
- instance
What is the method of calling one constructor of a class using another constructor of the same class called?
What is the method of calling one constructor of a class using another constructor of the same class called?
- Constructor chaining (correct)
- Method overloading
- Method overriding
- Inheritance
What is the actual superclass of all the classes in Java?
What is the actual superclass of all the classes in Java?
- Object class (correct)
- Base class
- Parent class
- Super class
Why are pointers not supported in Java?
Why are pointers not supported in Java?
Which type of inheritance involves multiple child classes inheriting properties from multiple parent classes?
Which type of inheritance involves multiple child classes inheriting properties from multiple parent classes?
What is the term for creating and implementing a method with the same name in a subclass as the parent class?
What is the term for creating and implementing a method with the same name in a subclass as the parent class?
What are the limitations of inheritance?
What are the limitations of inheritance?
Why does Java not support multiple inheritances?
Why does Java not support multiple inheritances?
Which type of constructor is created by the compiler when no constructor is defined in the program?
Which type of constructor is created by the compiler when no constructor is defined in the program?
Can a constructor be invoked by a subclass?
Can a constructor be invoked by a subclass?
What is the difference between constructors and methods?
What is the difference between constructors and methods?
What is the purpose of a wrapper class in Java?
What is the purpose of a wrapper class in Java?
Ques.1. What is Java?
Ques.1. What is Java?
Ques.2. What are some features of Java?
Ques.2. What are some features of Java?
Ques.3. What is JDK?
Ques.3. What is JDK?
Ques.4. What is Javac?
Ques.4. What is Javac?
Which one of the following is true about String objects in Java?
Which one of the following is true about String objects in Java?
What is the purpose of making String final in Java?
What is the purpose of making String final in Java?
What is the difference between the == operator and the .equals() method when comparing strings in Java?
What is the difference between the == operator and the .equals() method when comparing strings in Java?
What is the purpose of inheritance in object-oriented programming?
What is the purpose of inheritance in object-oriented programming?
Which of the following is true about the JVM?
Which of the following is true about the JVM?
Why is Java considered platform-independent?
Why is Java considered platform-independent?
What is the purpose of the Just In Time (JIT) compiler?
What is the purpose of the Just In Time (JIT) compiler?
What are the different access modifiers in Java?
What are the different access modifiers in Java?
Which method can be declared final?
Which method can be declared final?
Can an interface be declared final?
Can an interface be declared final?
What is static binding?
What is static binding?
What is dynamic binding?
What is dynamic binding?
What does the instanceof operator do?
What does the instanceof operator do?
What is a multithreaded program?
What is a multithreaded program?
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