first commit

src/main/java/core/basesyntax/SalaryInfo.java

@@ -1,7 +1,42 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
 public class SalaryInfo {
     public String getSalaryInfo(String[] names, String[] data, String dateFrom, String dateTo) {
-        return null;
+
+        StringBuilder result = new StringBuilder("Report for period " + dateFrom + " - " + dateTo
+                + "\n");
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
+        LocalDate from = LocalDate.parse(dateFrom, formatter);
+        LocalDate to = LocalDate.parse(dateTo, formatter);
+
+        for (String name : names) {
+            int totalSalary = 0;
+
+            for (String records : data) {
+                String[] dataParts = records.split(" ");
+                LocalDate currentDate = LocalDate.parse(dataParts[0], formatter);
+                String currentName = dataParts[1];
+                int currentHours = Integer.parseInt(dataParts[2]);
+                int currentRate = Integer.parseInt(dataParts[3]);
+                int salary = currentHours * currentRate;
+
+                if (name.equals(currentName)
+                        && !currentDate.isBefore(from)
+                        && !currentDate.isAfter(to)) {
+                    totalSalary += salary;
+                }
+
+            }
+            result.append(name)
+                    .append(" - ")
+                    .append(totalSalary)
+                    .append("\n");
+        }
+        result.deleteCharAt(result.length() - 1);
+        return result.toString();
     }
+
 }