How to Check the Highest Number Value using Java

This tutorial is all about how to check the highest number value using java between the three different user inputs.

This check the highest number value using java  comes with the algorithm that is very useful in a Java program by using an “If function” or a “Switch” function.

It is important that you understand on how to use a Scanner so that the program depends on user input. Also using “If function” to compare different and many conditions and understand on declaring and initializing different variables.

Check the highest number value in Java Steps

1.Create a new project using your Netbeans.

2.Insert the code above your class.

[java]import java.util.Scanner;[/java]

3.Add a main method inside your class.

[java]public static void main(String args[]){

}[/java]

4.Declare four variables, one for scanner and 3 for integer data type.

[java]int n_first,n_second,n_third;
Scanner sc = new Scanner(System.in);[/java]

5. Insert the following code after step 4. This statement will ask the user inputs.

[java]System.out.print("Enter First #: ");
n_first = sc.nextInt();
System.out.print("Enter First #: ");
n_second = sc.nextInt();
System.out.print("Enter First #: ");
n_third = sc.nextInt();[/java]

6. Insert the following code after step 5. The code is using nested if statement, assigned different condition, initialized the algorithm, and display output.

[java]if(n_first > n_second){
if (n_first > n_second){
System.out.println("The max number is " + n_first);
}else{
System.out.println("The max number is " + n_second);
}
}else{
if (n_second > n_third){
System.out.println("The max number is " + n_second);
}else{
System.out.println("The max number is " + n_third);
}
}[/java]

7. Run the program and the output should look like the image below.

8. Complete Source Code

[java]import java.util.Scanner;
public class CheckHighestValue {
public static void main(String args[]){
int n_first,n_second,n_third;
Scanner sc = new Scanner(System.in);

System.out.print("Enter First #: ");
n_first = sc.nextInt();
System.out.print("Enter First #: ");
n_second = sc.nextInt();
System.out.print("Enter First #: ");
n_third = sc.nextInt();

if(n_first > n_second){
if (n_first > n_second){
System.out.println("The max number is " + n_first);
}else{
System.out.println("The max number is " + n_second);
}
}else{
if (n_second > n_third){
System.out.println("The max number is " + n_second);
}else{
System.out.println("The max number is " + n_third);
}
}
}
}[/java]

After completing this tutorial, you learn about “nested if statement” and use “multiple conditions”. A nested if statement is an if statement inside an if statement.

About How to Check the Highest Number Value In Java

<figure class="wp-block-table is-style-stripes">
<table>
<tbody>
<tr>
<td><strong>Project Name:</strong></td>
<td>How to Check the Highest Number Value</td>
</tr>
<tr>
<td><strong>Language/s Used:</strong></td>
<td>JAVA</td>
</tr>
<tr>
<td><strong>Database:</strong></td>
<td>None</td>
</tr>
<tr>
<td><strong>Type:</strong></td>
<td>Desktop Application</td>
</tr>
<tr>
<td><strong>Developer:</strong></td>
<td>IT SOURCECODE</td>
</tr>
<tr>
<td><strong>Updates:</strong></td>
<td>0</td>
</tr>
</tbody>
</table><figcaption><em><strong>How to Check the Highest Number Value In Java</strong>- Project Information</em></figcaption></figure>

If you have any comment or suggestions on How to Check the Highest Number Value using Java tutorial. Please feel free to leave your comment below, use the contact page of this website or use my contact information.

Email: [email protected]  |  Cell. No.: 09468362375

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Technology stack and requirements

To run this Java project on your development machine, you need:

• Java Development Kit (JDK) 17 or higher. Download from adoptium.net (Eclipse Temurin) or oracle.com. JDK 21 LTS is recommended for new projects.
• Apache NetBeans or IntelliJ IDEA. Free IDEs with Java support, debugging, and GUI form designer.
• MySQL Server or MariaDB. Standalone install, or bundled with XAMPP for easier setup.
• MySQL Connector/J. JDBC driver JAR file included in the project’s lib folder or downloadable from dev.mysql.com.
• Git (optional). For version control if you want to extend the project.

Installing the source code

1. Extract the ZIP archive to a folder outside Program Files.
2. Open the project in NetBeans or IntelliJ. Choose File then Open Project and select the extracted folder.
3. Import the database. Open phpMyAdmin (with XAMPP) or MySQL Workbench, create a new database, and import the .sql file from the archive.
4. Update the JDBC connection string. Open the DatabaseConnection.java (or config file) and set your database host, name, user, and password.
5. Add the MySQL Connector JAR to the classpath. Right-click Libraries then Add JAR, select mysql-connector-java-x.x.x.jar.
6. Run the project. Press F6 (NetBeans) or Shift+F10 (IntelliJ) to run the main class.

Using this project for your BSIT capstone

• Chapter 1 (Introduction). Discuss the real-world problem this Java system solves. Cite Philippine business or academic use cases.
• Chapter 2 (RRL). Compare this project against 5-10 similar published works. Cite ACM, IEEE, or IJERT journal papers.
• Chapter 3 (Methodology). Include Use Case Diagram, DFD, ER Diagram, Class Diagram, and Sequence Diagram.
• Chapter 4 (Results). Screenshot each Swing form or JavaFX view with a caption explaining its role.
• Chapter 5 (Conclusion). Identify features for Version 2 (Spring Boot web version, REST API, mobile app).

Modules typical of How to Check the Highest Number Value using Java

• Master data CRUD. JFrame + JTable for the primary entities the system manages.
• Transaction processing. Data entry forms with validation before saving.
• Reports. JasperReports or iText for formatted printable output.
• User management. Login with role-based permissions (Admin, Encoder, Viewer).
• Backup / restore. Export MySQL database to .sql file.

Common enhancements for capstone review

• Modernize UI. FlatLaf or Substance look-and-feel for modern appearance.
• Add REST API. Wrap business logic with Spring Boot for mobile or web front-ends.
• Docker container. Package with Dockerfile for portable deployment.
• Cloud deployment. Deploy to AWS Elastic Beanstalk or Azure App Service.