Java Input Using Scanner Class Quiz

Questions and Answers

java.util.Scanner

import java.util.Scanner;

.next()

To use the methods available in the Scanner class for reading input values at runtime Signup and view all the answers

java.util Signup and view all the answers

To perform a specific task and can be reused Signup and view all the answers

User-defined methods Signup and view all the answers

Math class Signup and view all the answers

To return the minimum of the two values passed as arguments Signup and view all the answers

Calculates the area of a circle Signup and view all the answers

To create a block of code for a specific task that can be reused Signup and view all the answers

In separate classes like Math class Signup and view all the answers

Enhanced code reusability and modularity Signup and view all the answers

Calculates the area of a circle based on the radius passed as an argument Signup and view all the answers

To return the minimum of two values passed as arguments Signup and view all the answers

Study Notes

The Scanner class is used to read input values at runtime in Java.
The syntax to import the Scanner class from the java.util package is import java.util.Scanner;.
The next() method is used to read input values using the Scanner class in Java.

Creating an object of the Scanner class is necessary to use its methods to read input values.
The java.util package must be imported to avail the facilities of the Scanner class.

The purpose of a method in programming is to perform a specific task or set of tasks.
Methods defined by the user in a programming language are called user-defined methods.

Mathematical functions like Math.min() are defined in the java.lang package.
The Math.min() method returns the smallest of the two given numbers.

The purpose of defining a method in programming is to reuse code and improve code organization.
The main advantage of using a user-defined method in a Java program is code reusability and modularity.
The area() method in the given Java example calculates the area of a shape or figure.