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In this post, we will understand the difference between static binding and dynamic binding.Static BindingIt is resolved at compile time.It uses type of the class and fields.It uses private, final, and static methods and variables.Example: OverloadingDynamic BindingIt is resolved during run time.Virtual methods use this technique.It uses objects to resolve the binding.Example: Method overriding.
In this post, we will understand the difference between type casting and type conversion.Type castingA data type is converted to another data type using the casting operator by the developer.It can be applied to any compatible data types and incompatible data types.The casting operator is required to cast a data type to another type.The destination data type could be smaller than the source data type.It happens during the program design.It is also known as narrowing conversion since the destination data type may be smaller than the source data type.It is generally used in coding and competitive programming.It is efficient.It is ... Read More
Enter the start and stop time with hours, minutes and seconds. Finally, we need to find the difference between start and stop time.The logic to find the difference between start and stop time is given below −while (stop.sec > start.sec){ --start.min; start.sec += 60; } diff->sec = start.sec - stop.sec; while (stop.min > start.min) { --start.hrs; start.min += 60; } diff->min = start.min - stop.min; diff->hrs = start.hrs - stop.hrs;ExampleFollowing is the program to find difference between start and stop time − Live Demo#include struct time { int sec; int min; int hrs; ... Read More
In this post, we will understand the difference between break and continue statements.breakIt is used to terminate the enclosing loop like while, do-while, for, or switch statement where it is declared.It resumes control over the program until the end of the loop.It also helps with the flow of control outside the loop.It is used with ‘switch’ and ‘label’ since it is compatible.Following is the flowchart of break statement −continueIt helps skip the remaining part of the loop.It continues to execute the next iteration.It causes early execution of the next iteration of the enclosing loop.It can’t be used with ‘switch’ and ... Read More
In this post, we will understand the difference between one dimensional array and two dimensional array.One dimensional arrayIt helps store a single list of elements that are similar data type.The total bytes is calculates as the product of the datatype of variable array and the size of the array.C++ declarationtype variable_name[ size ];Java declarationtype variable_name [ ]; variable_name = new type[size];int [ ] a = new int [10];Two-Dimensional arrayIt helps store 'list of lists' or 'array of arrays' or 'array of one dimensional arrays', i.e nested arrays.The total bytes is equivalent to product of datatype of variable array and size ... Read More
Take two integers from the user for base and exponent and calculate the power as explained below.ExampleConsider the following for writing a C program.Suppose base =3Exponent = 4Power=3*3*3*3AlgorithmFollow the algorithm given below −Step 1: Declare int and long variables. Step 2: Enter base value through console. Step 3: Enter exponent value through console. Step 4: While loop. Exponent !=0 i. Value *=base ii. –exponent Step 5: Print the result.ExampleThe following program explains how to calculate power of given number in C language.#include int main(){ int base, exponent; long value = 1; printf("Enter a base value: ... Read More
An array of characters is called a string.DeclarationFollowing is the declaration for declaring an array is as follows −char stringname [size];For example − char string[50]; string of length 50 charactersInitializationUsing single character constant −char string[10] = { ‘H’, ‘e’, ‘l’, ‘l’, ‘o’ ,‘\0’}Using string constants −char string[10] = "Hello":;Accessing − There is a control string "%s" used for accessing the string till it encounters ‘\0’.Finding minimum occurrenceThe logic to find minimum occurrence of a character in a given string is as follows −for(i=0; i
In this post, we will understand the difference between virtual and pure virtual functions.Virtual FunctionIt has its own definition inside the class.The base class can override a virtual function.It doesn’t have a derived class.Declarationvirtual funct_name(parameter_list) {. . . . .};Pure Virtual FunctionIt doesn’t have a definition.If a class has at least one virtual function, it can be declared abstract.The derived class has to override the pure virtual function to use it.A pure virtual function is specified by placing "= 0" in its declarationDeclarationvirtual funct_name(parameter_list)=0;Following is an example −Exampleclass Box { public: // pure virtual function virtual double ... Read More
In this post, we will understand the difference between the ‘while’ loop and the ‘do-while’ loop.while conditionThe controlling condition here appears at the beginning of the loop.The iterations do not occur if the condition at the first iteration results in False.It is also known as an entry-controlled loopThere is no condition at the end of the loop.It doesn’t need to execute at least one.Examplewhile ( condition){ statements; //body of loop }Following is the flowchart of while loop −do-while conditionThe controlling condition is present at the end of the loop.The condition is executed at least ... Read More
In this post, we will understand the difference between the ‘for’ and the ‘while’ loop.For loopThe initialization, condition checking, and the iteration statements are written at the beginning of the loop.It is used only when the number of iterations is known beforehand.If the condition is not mentioned in the 'for' loop, then the loop iterates infinite number of times.The initialization is done only once, and it is never repeated.The iteration statement is written at the beginning.Hence, it executes once all statements in loop have been executed.Examplefor(initialization; condition; iteration){ //body of the 'for' loop }Following is the flowchart ... Read More