Technical Interview Questions
The Iterator interface is used to step through the elements of a Collection. The Iterator is an interface, used to traverse through the elements of a Collection. It is not advisable to modify the collection itself while traversing an Iterator. In Core Java, the Iterator interface is a part of the Java Collections Framework and is used … Read more
A (non-local) inner class may be declared as public, protected, private, static, final, or abstract. In Java, an inner class that is a member of an outer class can have various modifiers. The modifiers that can be applied to an inner class include: Access Modifiers: public: The inner class can be accessed from outside the outer class. protected: The inner class … Read more
The Vector class provides the capability to implement a growable array of objects. In Core Java, the Vector class is a part of the Java Collections Framework and is present in the java.util package. It is a legacy class that was part of the original version of Java and was later retrofitted to implement the List interface. … Read more
It uses those low order bytes of the result that can fit into the size of the type allowed by the operation. In Java, integer overflows and underflows are handled using a concept called “wrap-around” or “modulo arithmetic.” Java uses two’s complement representation for integers, and when an overflow or underflow occurs, the value wraps … Read more
The List interface provides support for ordered collections of objects. The List interface in Java is a part of the Java Collections Framework and is located in the java.util package. It extends the Collection interface and represents an ordered collection of elements. Unlike sets, lists typically allow duplicate elements. Some key characteristics of the List interface include: … Read more