JAVA PROGRAM • LEVEL 18 — PLACEMENT PROGRAMS & MINI PROJECTS

Calculate Employee Payroll in Java

Learn calculate employee payroll in java with a complete, compiler-ready Java 17 example.

AdvancedSealed interfacePolymorphismPayroll

PROBLEM UNDERSTANDING

Input and expected output

Sample input
No input required
Sample output
Asha 50000.0
Ravi 40000.0

COMPLETE JAVA 17 PROGRAM

Complete Java 17 implementation

java-employee-payroll.java
Open in compiler
sealed interface Employee permits FullTime,Contract{String name();double pay();}record FullTime(String name,double monthlySalary)implements Employee{public double pay(){return monthlySalary;}}record Contract(String name,int hours,double rate)implements Employee{public double pay(){return hours*rate;}}class Main{public static void main(String[] args){java.util.List<Employee> staff=java.util.List.of(new FullTime("Asha",50000),new Contract("Ravi",80,500));for(Employee employee:staff)System.out.println(employee.name()+" "+employee.pay());}}

GUIDED CODE TOUR • NOT LIVE EXECUTION

Study the program line by line

Use the real compiler button above to run and debug with different inputs.

CURRENT STEP

Select Start to walk through the important lines.

SELECTED LINE

No line selected

EXPECTED OUTPUT FOR THE SAMPLE

Asha 50000.0
Ravi 40000.0
0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

  1. Initialize the deterministic sample values used for calculate employee payroll in java.
  2. Create the required object and apply Sealed interface and Polymorphism to its state or behavior.
  3. Print the final result and compare it with the documented sample output.

This Java 17 example demonstrates Sealed interface, Polymorphism, and Payroll through a complete, executable program. The values are intentionally small so students can trace each statement, verify the output, and then modify the example safely in the online compiler.

EFFICIENCY

Time and space complexity

Time complexity

O(n)

Auxiliary space

O(n)

DEBUGGING CHECKLIST

Common mistakes

Check this

Keep the class name Main and the entry method signature public static void main(String[] args) when using the online compiler.

Check this

Check the loop boundary and update expression carefully to avoid skipping the final value or creating an infinite loop.

Check this

Java is case-sensitive, and every statement that requires a semicolon must end with one.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.