Decision-making:
By: aathishankaran in Java Tutorials on 2007-02-01
Decision-making: The if construct
If a certain condition is true, you direct the program to take one course of action. If the condition is false, you direct the program to do something else. This is one of the most fundamental concepts in computer programming. This decision-making can be done by means of the if construct. The if construct makes use of relational and logical operators for decision-making. The simplest form of if construct is as follows:
{
statement 1;
statement 2;
}}
Example:
To accept two numbers and verify and whether they are equal or not, the following pseudocode can be witten:
PROGRAM_EQUAL
{
integer Number1;
integer Number2;
accept Number1;
accept Number2;
if(Number1 == Number2)
{
display "Input numbers are equal";
}
}
If the numbers are equal, it displays the message `Input numbers are equal`. If the are not equal, the execution of program sequence terminates without any message. To handle the situation when two numbers are not equal, the following pseudocode can be written as:
PROGRAM_EQUAL
{
integer Number1, Number2;
accept Number1;
accept Number2;
if(Number1 == Number2)
{
display "Input numbers are equal";
}
else
{
display "Input numbers are not equal";
}
}
The general form of if construct is as follows:
if( condition )
{
statement1;
statement2;
}
else
{
statement3;
statement4;
} Add Comment
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
- Your name, rating, website address, town, country, state and comment will be publicly displayed if entered.
- Aside from the data entered into these form fields, other stored data about your comment will include:
- Your IP address (not displayed)
- The time/date of your submission (displayed)
- Your email address will not be shared. It is collected for only two reasons:
- Administrative purposes, should a need to contact you arise.
- To inform you of new comments, should you subscribe to receive notifications.
- A cookie may be set on your computer. This is used to remember your inputs. It will expire by itself.
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
- Although the administrator will attempt to moderate comments, it is impossible for every comment to have been moderated at any given time.
- You acknowledge that all comments express the views and opinions of the original author and not those of the administrator.
- You agree not to post any material which is knowingly false, obscene, hateful, threatening, harassing or invasive of a person's privacy.
- The administrator has the right to edit, move or remove any comment for any reason and without notice.
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
- Data Science
- Android
- React Native
- AJAX
- ASP.net
- C
- C++
- C#
- Cocoa
- Cloud Computing
- HTML5
- Java
- Javascript
- JSF
- JSP
- J2ME
- Java Beans
- EJB
- JDBC
- Linux
- Mac OS X
- iPhone
- MySQL
- Office 365
- Perl
- PHP
- Python
- Ruby
- VB.net
- Hibernate
- Struts
- SAP
- Trends
- Tech Reviews
- WebServices
- XML
- Certification
- Interview
categories
Related Tutorials
Read a file having a list of telnet commands and execute them one by one using Java
Open a .docx file and show content in a TextArea using Java
Step by Step guide to setup freetts for Java
Of Object, equals (), == and hashCode ()
Using the AWS SDK for Java in Eclipse
DateFormat sample program in Java
concurrent.Flow instead of Observable class in Java
Calculator application in Java
Sending Email from Java application (using gmail)
Comments