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what is the difference between method overriding and overloadingoverriding is a method with the same name and arguments as in a parent
how many static initializers can you have as many as you want but the static initializers and class variable initializers are implemented in textual
what is the difference between an if statement and a switch statementthe if statement is used to select between two alternatives it uses a boolean
what restrictions are placed on method overridingoverridden methods must have the similar name argument list and return type the overriding method
what is numeric promotionnumeric promotion is the conversion of a smaller numeric type to a larger numeric type so that integer and floating-point
what is the difference between inner class and nested classwhen a class is explained within a scope od another class then it becomes inner classif
what is the difference between a while statement and a do while statementa while statement checks at the starting of a loop to see whether the next
what does it mean that a method or field is staticstatic variables and methods are instantiated only once per class in other words they are class
how many bits are used to show unicode ascii utf-16 and utf-8 charactersunicode requires 16 bits and ascii require 7 bits although the ascii
what do you understand by private protected and publicthese are accessibility modifiers private is the most restrictive whereas public is the least
what is castingthere are two types of casting casting among primitive numeric types and casting among object references casting among numeric types
what is an objects lock and which objects have locksan objects lock is a mechanism that is used by multiple threads to get synchronized access to the
what is a local member and a class variablevariables declared within a method are local variablesvariables declared within the class ie not within
why is an interface be able to extend more than one interface but a class cant extend more than one classbasically java doesnt permit multiple
what is the importance of static variablestatic variables are class level variables where all objects of the class refer to the similar variable if
what is semantic gapdefining a useful channel includes both understanding the applications requirements and recognizing the limitations of the
what are the criteria necessary for an effective and efficient networka performanceit can be measured in several ways including transmit time and
what are the advantages of distributed processingbenefits of distributed programming are-a securityencapsulationb faster problem solvingc distributed
what is a gateway or routera node that is linked to two or more networks is commonly called as router or gateway it generally forwards message from
what is a nodea network can have of two or more computers directly linked by some physical medium such as coaxial cable or optical fiber such a
what is a linkat the lowest level a network can have of two or more computers directly linked by some physical medium such as coaxial cable or
define networka network is a set of devices linked by physical media linksa network is recursively is a connection of two or more nodes by a physical
briefly explain the characteristics of value-type variables that are supported in the c programming languagethe variables that are based on value
explain keywords with example keywords are those words that are reserved to be used for an exact task these words cannot be used as identifiers you
what does a break statement do in the switch statementthe switch statement is a selection control statement that is used to handle many choices and