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Programming Articles
Page 1669 of 2547
Difference between Go and Java.
Both Go and Java are popular backend programming languages, and each has its own unique features. Java is an older language with a large community support, whereas Go is a comparatively newer language developed by Google. In this article, we will learn more about the differences between Go and Java. Go Language Go, also called Golang, is an open-source programming language developed by Robert Griesemer, Rob Pike, and Ken Thompson at Google. It was created to build large and complex software systems more easily. It is a statically typed and compiled programming language that has a simple and ...
Read MoreWhat is the const Keyword in C++?
The const keyword in C++ is a keyword that is used to declare variables and objects as constant, which means the value declared using const cannot be changed or modified later, once they are initialized. This helps them prevent accidental modifications. For example, in a code, if we are using the value of PI, which has a fixed universal value and doesn't need any change, then we can declare it as a constant. When you declare the object with the const keyword, then the compiler places that value in ROM (Read-Only Memory), which protects it from being changed ...
Read MoreWhat are shift operators in C++?
In C++, bitwise operators are used to perform operations on binary numbers. Since computers store all data in the form of binary (0s and 1s), therefore, every value, like decimal numbers, characters, and booleans, is internally represented in binary. for example: 5 = 00000101 and 3 = 00000011 To learn more about how to convert these decimal values to binary, you can visit this page: Decimal to Binary Conversion. Shift Operators in C++ The shift operator is one of the types of bitwise operators, which are used to move bits of a number left or right. There are two types of ...
Read MoreExecute both if and else statements in C/C++ simultaneously
In this article, we will see how to execute the if and else section simultaneously in a C or C++, code. This solution is a little bit tricky. When the if and else are executed one after another then it is like executing statements where if-else are not present. But here we will see if they are present how to execute them one after another. Let's go through the different ways to simulate execution of both if and else blocks. This may include using functions, macros, or separating logic completely. Using Separate Functions ...
Read MoreCompare *ptr++, *++ptr and ++*ptr in C++
In C++, both ptr++ and ++ptr are used to increment pointers, but they behave differently in expressions. The difference lies in when the increment happens: before or after the value is used. This is essential when working with loops, arrays, or pointer. Syntax Following is the syntax to compare ptr++ vs ++ptr in C++: ptr++: post-increment; ++ptr: pre-increment; Following is the table to compare ptr++ vs ++ptr in C++ ...
Read MoreDangling, Void, Null and Wild Pointers in C++
In C++, direct memory access is possible using pointers. However, the improper use of pointers can lead to problems such as dangling pointers, null pointers, void pointers, and wild pointers. You must have to fix these problems properly for correct code compilation and execution. Let us learn how these problems occur and how you can fix them. Dangling Pointer A dangling pointer is a variable that points to invalid or freed memory, causing errors if accessed. It is like calling a disconnected phone number. When the local variable is not static, the pointer pointing to it becomes dangling. Syntax Following ...
Read MoreWhy use static_cast(x) instead of (int)x in C++?
The (int)x is C-style typecasting, where static_cast(x) is used in C++. This static_cast() gives a compile-time checking facility, but the C-style casting does not support that. This static_cast() can be spotted anywhere inside a C++ code. And using this C++ cast, the intentions are conveyed much better. In C like cast, sometimes we can cast some type pointer to a point some other type data. Like one integer pointer can also point character type data, as they are quite similar, the only difference is character has 1-byte, integer has 4-bytes. In C++, the static_cast() is more strict than C-like casting. ...
Read MoreC++ Program to Implement Selection Sort
The selection sort is an in-place comparison-based simple sorting algorithm. In the selection sort technique, the list is divided into two parts: sorted and unsorted. The minimum element from the unsorted part is selected and swapped with the element at the beginning of the list. Similarly, the next minimum value from the unsorted list is placed at the next position in the sorted list, and this keeps repeating until the whole array is sorted. In this article, we have an unsorted array. Our task is to sort this array using selection sort in C++. Here is an example of selection ...
Read MoreWhat are postfix operators in C++?
In C++, operators are special symbols that are designed to perform various Operations on variables and values, like arithmetic, comparison, or logical operations. A Postfix Operator is a type of operator that is used to increment or decrement a value by 1(unless overloaded). It is a unary operator, which works only on a single variable. There are two types of postfix operators in C++: ++ : Post-increment -- : Post-decrement Post Increment Operator (++) The post-increment operator increments the value of a given variable by 1, but only after its ...
Read MoreCan we overload or override a static method in Java?
In Java, you cannot override static methods but you can overload them. Overloading a static method is allowed because the JVM determines which method to call at compile time based on the method signature, rather than the object's type. However, overriding is not allowed for static methods because an overridden method is called based on the object's type. In this article, we are going to discuss is it possible to overload and override a static method in Java. Also, we will understand static methods, method overloading and method overriding. What is a Static Method? A method defined using the static ...
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