BaşlayınÜcretsiz Başlayın

Department analysis

Your initial analysis impressed the HR team! Now they want to dive deeper into departmental insights. The leadership team is considering budget allocations for next year and needs to understand how salaries are distributed across different departments. They're particularly interested in departments with both high average salaries and a good number of senior employees (age 40+).

The Table, Selection, and aggregate functions (mean, count, max) have been imported for you.

Bu egzersiz

Importing Data in Java

kursunun bir parçasıdır
Kursu Görüntüle

Egzersiz talimatları

  • Summarize "Salary" with mean, count, and max.
  • Filter for employees aged 40+.
  • Sort by "Department", then "Salary" descending.

Uygulamalı interaktif egzersiz

Bu örnek kodu tamamlayarak bu egzersizi bitirin.

public class DepartmentAnalysis {
	public static void main(String[] args) {
    	try {
            Table highEarners = Table.read().csv("top_10_earners.csv");

            // Summarize Salary with mean, count, and max
            Table salarySummary = highEarners.____("____", 
                mean, count, max).apply();

            System.out.println("Salary Summary:");
            System.out.println(salarySummary);

            // Filter for employees aged 40+
            Table seniorEmployees = highEarners.where(
                highEarners.intColumn("____").isGreaterThanOrEqualTo(____));

            // Sort by Department, then Salary descending
            Table sortedSeniors = seniorEmployees.____("Department")
            								.sortDescendingOn("Salary");

            System.out.println("\nSenior Employees (40+) by Department:");
            System.out.println(sortedSeniors);
            
		} catch (Exception e) {
            System.err.println("Error reading CSV files: " + e.getMessage());
        }
    }
}
Kodu Düzenle ve Çalıştır