Explain the ? operator in java, JAVA Programming

Assignment Help:

Explain The ?  operator in Java ?

The value of a variable frequent depends on whether a particular boolean expression is or is not true and on nothing else. For example one general operation is setting the value of a variable to the maximum of two quantities. In Java you might write

if (a > b) {
max = a;
}
else {
max = b;
}

Setting a single variable to one of two states based on a single condition is like a general use of if-else in which a shortcut has been devised for it, the conditional operator, ?:. By using the conditional operator you can rewrite the above instance in a single line such as this:

max = (a > b) ? a : b;

(a > b) ? a : b; is an expression that returns one of two values, a or b. The condition, (a > b), is tested. If it is true the first value, a, is returned. If it is false, the second value, b, is returned. Whenever value is returned is dependent on the conditional test, a > b. The condition can be any expression that returns a boolean value.


Related Discussions:- Explain the ? operator in java

Java program to play minesweeper , Project Requirements Write and tes...

Project Requirements Write and test a Java program to play Minesweeper using Model-View-Presenter design (The model is an interface defining the data to be displayed or other

Write a program in javascript that will read in an xml file, Write a progra...

Write a program in Javascript that will read in an XML file. This file will contain details of devices maintained by the IT department of an organisation including an ID number, de

Explain why java does not support multiple inheritance, Question: (a) ...

Question: (a) Differentiate between the following terms using suitable examples of your own:- (i) inheritance v/s composition (ii) subclass v/s superclass (iii) softwa

Define class diagram , Class diagram technique is vital within Object Orie...

Class diagram technique is vital within Object Oriented functions. Class diagrams illustrate the kinds of objects in the system and the several static relationships among them. Cl

Program to insert item in tree, public class TreeTest {     public static v...

public class TreeTest {     public static void main(String args[])     {         Tree t = new Tree ();         System.out.println("Populating");         t.insertItem(1);         t

Constructors or destructors in java program, Consider the following Java de...

Consider the following Java definition of an integer list class. class IntegerList { private int[] list = new int[200]; private int size = 0; public boolean append(int value) {

What restrictions are placed on method overriding, What restrictions are pl...

What restrictions are placed on method overriding? Overridden methods must have the similar name, argument list, and return type. The overriding method may not limit the access

Describe the java.lang package, Describe the java.lang package ? Each p...

Describe the java.lang package ? Each package describes a number of classes, exceptions, interfaces, and errors. For instance, in Java 1.1 the java.lang package holds these:

What is java bytecode, What is java Bytecode Java programs (Source code...

What is java Bytecode Java programs (Source code) are compiled into a form known as Java bytecodes. Java compiler reads Java language source (.java) files, translates source

Can a human doctor be replaced through an expert system, Can a human doctor...

Can a human doctor be replaced through an Expert System? Give reasons to support your answer. Expert System is a computer system that simulates the knowledge and expertise of a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd