Programming Articles - Page 304 of 2501

Checking Eligibility of TPP Students in Java Consider the following table for eligibility criteria of different companies for appearing in interviews: CGPA ... Read More

In this article, we will learn how to determine whether the installed JVM in your system is 32 bit or 64 bit. For this operation, we use the getProperty() method of System class, which helps in retrieving system property of specified argument. In computer architecture, 32 bit and 64 bit refers to those components that operate on data in 32-bit units and 64-bit units respectively. 64 bit machines are said to be faster and more secure compare to the 32 bit machines. What is JVM? JVM is Java Virtual Machine that is responsible for executing the byte code. It is ... Read More

When the sum of factors of a given number (after discarding the given number) is equal to the number itself is called a perfect number. The sum of these divisors is known as the aliquot sum. Therefore, we can say that a number is perfect if it matches its aliquot sum. All known perfect numbers are even. Problem Statement In this article, we will create Java programs to check if a given number is perfect or not. Let's try to understand the given problem through some examples: Example Scenarios: Input: number = 496 Output: 496 is a perfect number ... Read More

In Java, a collection is an object that allows us to group several numbers of objects as a single unit. The Collection interface is the root of the collection framework. We can perform various operations on collection like adding, removing, iterating, searching and retrieving objects. In this article, we will discuss Java programs to add data from the specified collection to the current collection with the help of addAll() method. Using addAll() method of Collection Interface The addAll() method of Collection interface adds data from a specified collection into current collection. It returns a boolean value, which is TRUE if the ... Read More

The sum of the nth squares series is a form of arithmetic progression where the sum of squares is arranged in a sequence with the initial term as 1, and n being the total number of terms. 12 + 22 + 32 + ... + n2 In this article, we will discuss a Java program to add the nth square series. But, before that, let's see an example scenario: Example Scenario: Input: num = 6 Output: sum = 91 It will be calculated as: 12 + 22 + 32 + 42 + 52 + 62 = 1 ... Read More

In Java, super refers to the parent class instance, and to inherit members of the super class to the child class, we use the extends keyword. Before writing a Java program to allocate and initialize super class members using a constructor, let's go through some concepts we are going to use in this article. What is Constructor? A Java constructor is a class member that initializes instance variables of a class. It is very similar to a method, but the difference is that methods can return a value, but a constructor does not return any value because it can't have any return ... Read More

Inheritance is a concept that allows us to access the properties and behaviors of one class in another class. The class whose methods and member variables are inherited is known as the super class or parent class, and the class that inherits these methods and member variables is known as the child class or subclass. In Java, we use the extends keyword to inherit a class. Problem Statement Write Java programs that calculate interest for Fixed Deposits (FDs) and Recurring Deposits (RDs) using inheritance. The program should prompt the user to choose between FD and RD, enter the amount and duration, ... Read More

We are given two time periods, and our task is to write a Java program to calculate the difference between them. For this problem, we can use classes and methods of java.time, java.util, and java.text packages. SimpleDateFormat class Date class LocalDate class Period class parse() method between() method As we move further in this article, we will understand the uses of these classes and methods in calculating the difference between two time periods. Some examples ... Read More

The given task is to categorize Taller, Dwarf, and Average by the Height of a Person. First of all, we need to define tall, dwarf, and average height of a person. Let us assume -A person with a height between 170cm to 195cm is considered taller.If his height is between 150cm and 195cm, he is considered taller.A person whose height is below 150cm is considered a dwarf.If his height is greater than 195cm, he is considered abnormal.Categorizing the Height of a Person in JavaTo categorize the Height of a Person, we need to compare his height with each range specified above. ... Read More

Java Program to Add Characters to a String Java provides different ways to add characters to a string. We can add characters in the beginning or at the end or at any position according to the need. In this article, we are going to see three different approaches to do so: Using '+' operator Using methods of StringBuffer and StringBuilder classes ... Read More