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Object Oriented Programming Articles
Page 320 of 589
Java Program to Compute Quotient and Remainder
Given an integer a and a non-zero integer d, our task is to write a Java program to compute the quotient and remainder. Quotient can be calculated using the formula "Quotient = Dividend / Divisor" and for remainder, use "Remainder = Dividend % Divisor". When a number, i.e., dividend, is divided by another number, i.e., divisor, the quotient is the result of the division, while the remainder is what is left over if the dividend does not divide completely by the divisor. Example Scenario Suppose our input is - Input1: Dividend = 50 Input2: Divisor = 3 The output ...
Read MoreHow to print a formatted text using printf() method in Java?
In Java, formatted text refers to those text that has been processed and arranged according to a specific format. According to the article, we will use the printf() method to learn how to print the formatted text. Formatted Text using printf() Method In Java, to print the formatted output or text we have a printf() method. The printf() method allows us to format output to a java.io.PrintStream or java.io.PrintWriter. These classes also contain a method called format() which can produce the same results, so whatever we read here for the printf() method can also be applied to the format() method. ...
Read MoreWhat are the advantages of C++ Programming Language?
C++ is a general-purpose and high-level programming language, which was created by Bjarne Stroustrup in the early 1980s. It is an extension of the C programming language, which means it has features of C (procedural programming) with the added feature of object-oriented programming. It has become a widely used language, especially in competitive programming and is supported on most platforms such as Windows, Linux, Unix, and macOS. Advantages of C++ Programming LanguageIn this article we will discuss the advantages of using C++ language: C++ is a highly portable language that supports multi-device and multi-platform application ...
Read MoreHow can we read from standard input in Java?
The standard input (stdin) can be represented by System.in in Java. The System.in is an instance of the InputStream class. It means that all its methods work on bytes, not Strings. To read any data from a keyboard, we can use either the Reader class or the Scanner class. Using Reader Class In Java, the Reader class is an abstract class belonging to the java.io package that is used for reading character streams. It is the superclass of all character input streams, such as "BufferedReader", "InputStreamReader", "FileReader", etc. Subclasses of Reader To use the functionality of the Reader class, use its ...
Read MoreCan Enum implements an interface in Java?
Yes, an Enum implements an Interface in Java. It can be useful when we need to implement business logic that is tightly coupled with a specific property of a given object or class. Before implementing the interface with an enum, let's discuss enums and interfaces in Java with a code snippet for better understanding. Enum in Java In Java, an Enum (i.e., an enumeration) is a special data type added in Java version 1.5. Enums are constants by default; the names of an enum type's fields are in uppercase letters. In the Java programming language, you can define an Enum ...
Read MoreImportance of deepToString() and asList() methods in Java?
In Java, both deepToString() and asList() methods are static methods of the Arrays class. An array is an object that holds a fixed number of values of a similar type in a contiguous memory location. The deepToString() Method In Java, the deepToString() method is used to convert a multi-dimensional array into a string. It checks if any element in the array is also an array; it will convert that inner array to a string as well. Syntax Following is the syntax of the Arrays.deepToString() method: public static String deepToString(Object[] a) Here, a: An array ...
Read MoreHow to check if a given character is a number/letter in Java?
The Character class is a subclass of Object class and it wraps a value of the primitive type char in an object. An object of type Character contains a single field whose type is char. We can check whether the given character in a string is a number/letter by - Using isDigit() method Using ASCII value comparison Using isDigit() Method To check whether a given character is a number or not, Java provides a method called isDigit(). This method is a static method of the Character class and determines whether ...
Read MoreImportance of return type in Java?
A method in Java is a set of statements that can be reused in the program whenever we want. We can write a method once and call it multiple times. We can return values from a method; the datatype of the value we return is known as the return type. We return values from a Java method using a return statement. A return statement causes the program control to transfer back to the caller of a method. Every method in Java is declared with a return type, ...
Read MoreWhat can cause the \"cannot find symbol\" error in Java?
In Java, the cannot find symbol error occurs when we try to reference a variable that is not declared in the program or when we try to access a class that is not declared or imported. Possible Causes of 'Cannot Find Symbol' Error Below is a list of some possible causes of the 'cannot find symbol' error in Java - Using a variable that is not declared or outside the code. Using wrong cases ("tutorials" and "Tutorials" are different) or making spelling mistakes. The packaged class has ...
Read MoreHow to create a thread by using anonymous class in Java?
This article will use an anonymous class to create a Thread in Java. An Anonymous class is a class that does not have a name. Thread in Java In Java, a Thread is a part of a program that can be executed independently. All Java programs have at least one thread, known as the main thread, which is created by the Java Virtual Machine (JVM), when the main() method is invoked. Creating a Thread by Using Anonymous Class In Java, the basic way to create a thread is to either extend the Thread class or implement the Runnable interface. However, we ...
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