try1

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

@@ -1,7 +1,34 @@
 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;
+    private static final DateTimeFormatter FORMATTER =
+            DateTimeFormatter.ofPattern("dd.MM.yyyy");
+
+    public String getSalaryInfo(String[] names, String[] data, String dateFrom,
+                                String dateTo) {
+        StringBuilder salaryReport = new StringBuilder("Report for period "
+                + dateFrom + " - " + dateTo + System.lineSeparator());
+        LocalDate firstDate = LocalDate.parse(dateFrom, FORMATTER);
+        LocalDate lastDate = LocalDate.parse(dateTo, FORMATTER);
+        for (String name : names) {
+            int fullSalary = 0;
+            for (String entry : data) {
+                String[] parts = entry.split(" ");
+                LocalDate date = LocalDate.parse(parts[0], FORMATTER);
+                if (!date.isBefore(firstDate) && !date.isAfter(lastDate)
+                        && name.equals(parts[1])) {
+                    int hours = Integer.parseInt(parts[2]);
+                    int salaryPerHour = Integer.parseInt(parts[3]);
+                    fullSalary += hours * salaryPerHour;
+                }
+            }
+            salaryReport.append(name).append(" - ").append(fullSalary)
+                    .append(System.lineSeparator());
+        }
+        salaryReport.deleteCharAt(salaryReport.length() - 1);
+        return salaryReport.toString();
     }
 }