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]

  1. 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>

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Frequently Asked Questions

How does this Java project work?

Built with Java Swing (NetBeans IDE) and MySQL backend via JDBC. Standard structure: JFrame designer to event handlers to DAO layer to MySQL. Login form for auth. Ready to extend for BSIT capstone scope.

What Java JDK and MySQL versions does this project require?

Most projects in this batch use Java JDK 8 or 11 with MySQL 5.7+ or MariaDB 10+. To run: install JDK (Adoptium / Oracle), install MySQL Server + MySQL Workbench, install NetBeans IDE (15+ supports modern JDK), open the project (.zip extracted folder), right-click + Open Project, add MySQL JDBC driver to Project Libraries, run.

How do I set up the database for this Java project?

Open MySQL Workbench (or phpMyAdmin if you have XAMPP), create a new empty database with the name specified in the project. Import the included .sql file via Server, Data Import in Workbench (or Import tab in phpMyAdmin). Update the connection class (usually DBConnection.java or DatabaseConnection.java) with your MySQL host, port, username, password, and database name.

Can I use this Java project for a BSIT capstone or thesis?

Yes, Java is one of the most accepted languages by Philippine BSIT panels. Extend it: add role-based access (admin/staff/customer login redirect), JasperReports printable reports, dashboards with JFreeChart, audit log, multi-branch support. Pair with Chapter 1-5 documentation matching your panel’s rubric.

Why am I getting ‘ClassNotFoundException: com.mysql.jdbc.Driver’ or ‘No suitable driver’?

Three common Java JDBC issues: (1) MySQL JDBC driver JAR not added to project Libraries. Right-click Project, Properties, Libraries, Add JAR/Folder, select mysql-connector-java-X.X.X.jar. (2) Wrong driver class name. Modern (8.0+) uses com.mysql.cj.jdbc.Driver, legacy (5.x) uses com.mysql.jdbc.Driver. (3) Connection URL missing serverTimezone parameter, add ?serverTimezone=UTC to the URL.

Where can I find more Java projects with source code?

Browse the Java Projects hub for the full library (120+ Java desktop systems). For modern Java web alternatives consider Spring Boot. For other desktop stacks see VB.NET Projects or C# Projects. For BSIT capstone idea lists see 150 Best Capstone Project Ideas.

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