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Passing multiple props in a single event handler in ReactJS can be useful for situations where more than one value needs to be worked on based on some user input. In this article, we will discuss three different ways to pass props in a single event handler in ReactJS. Here is a list of approaches: Using Arrow Functions Using bind() Method Using Event Object Using Arrow Functions To pass multiple props in a single event handler, we will use the most popular approach i.e. ... Read More
Multiple inheritance is a type of inheritance where a single subclass inherits multiple superclasses. As the name suggests, inheritance is the ability of a class to inherit members of another class. The class whose properties are inherited is called a superclass, whereas the class that inherits a superclass is called a subclass. We use the extends keyword to inherit the members of a class. Unlike other object-oriented programming languages, Java does not support multiple inheritance. As an alternative, we can implement multiple inheritances from a single class. Why Java Does Not Support Multiple Inheritance When a single class inherits the ... Read More
Java supports overloading, i.e., in a Java class, we can have two different methods with the same name and different parameter lists (different number of parameters with same type or, same number of parameters with different types). Whereas, method overriding is a concept where the super class and the sub-class have the same methods, including the parameters and signature. The JVM calls the respective method based on the object used to call the method. Method Overloading in Java When a class has two or more methods with the same name but different parameters, the respective method is called based on ... Read More
The given task is to write Java programs that compare two sets and check if they are equal or not. Here, Set is an interface of the Java Collection Framework that extends the Collection interface and stores unique elements. Set depicts the features of a mathematical set. Hence, it allows all those operations that we can perform on a mathematical set, such as union, comparison, intersection, etc. Since Set is an interface, we can't use its functionalities directly. For this purpose, we need a TreeSet class that implements the Set Interface and can access its methods. How to Compare Two Sets in ... Read More
Java is an object-oriented programming language, which means that everything in Java is represented as a class and object. Every entity with state and behavior is an object. And, classes are the templates to create objects. It contains data and functions so that it can later be accessed by their objects wherever and whenever they are needed. The main task of objects is to get the data present in the classes or use the functions in those classes to manipulate the data. It is compulsory for a class to have an object. Otherwise, it can't be used. But, an object ... Read More
The main difference between JTextField and JTextArea in Java is that a JTextField allows entering a single line of text in a GUI application while the JTextArea allows entering multiple lines of text in a GUI application. JTextField The following are the key characteristics of JTextField in Java: A JTextFeld is one of the most important components that allow the user to an input text value in a single line format. A JTextField will generate an ActionListener interface when we trying to enter some input inside it. The JTextComponent is a superclass of JTextField that provides a common set ... Read More
In C++, there are two main ways to pass arguments to functions: pass by value and pass by reference. When you use pass by value, a copy of the variable is made, so the original variable doesn't change. With pass by reference, the function works with the original variable, so it can be changed directly. Each method is used based on what you want the function to do. We can pass arguments into a function in different ways. These different ways are − Call by Value Call by Reference ... Read More
In C/C++, the pointers have multiple levels, which means a pointer can point to another pointer – so the chains of indirection can go on and on. For instance, a pointer to a variable's address is stored at "*ptr" (single-level pointer) while, at "**ptr", the address of another pointer is kept (a double-level pointer), so on. This is useful in allocating memory dynamically, working with multi-dimensional arrays, and handling complicated data structures.Following is the list of different levels of pointers. Let us understand these with the help of examples: Single Level Pointer ... Read More
Anonymous Function in Python An anonymous function is a function which doesn't have a name. We can return a value from an anonymous function, call it at the time of creation or, assign it to a variable. Instead of using the def keyword, which is used for regular functions, anonymous functions are defined using the lambda keyword. Hence, they are commonly referred to as lambda functions. Syntax Following is the syntax to create anonymous functions using the lambda keyword - lambda [args] : expression Although a lambda function can have only one expression, it can have any number ... Read More
In C++, converting a string into uppercase means changing all the characters into uppercase. This is a common requirement in many applications, such as formatting output, standard data input, and case sensitivity. Following is the table that shows the conversion of string to uppercase: String Case Characters Uppercase Characters ... Read More