getSalaryInfo method was implemented

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

@@ -1,7 +1,48 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.List;
+
 public class SalaryInfo {
+    public static final int INDEX_OF_DATE = 0;
+    public static final int INDEX_OF_NAME = 1;
+    public static final int INDEX_OF_DAYS = 2;
+    public static final int INDEX_OF_PRICE = 3;
+    public static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("dd.MM.yyyy");
+
     public String getSalaryInfo(String[] names, String[] data, String dateFrom, String dateTo) {
-        return null;
+        LocalDate localDateFrom = LocalDate.parse(dateFrom, FORMATTER);
+        LocalDate localDateTo = LocalDate.parse(dateTo, FORMATTER);
+        int[] finalSalary = new int[names.length];
+        for (String line : data) {
+            String[] personInformation = line.split(" ");
+            LocalDate date = LocalDate.parse(personInformation[INDEX_OF_DATE], FORMATTER);
+            String nameOfEmployee = personInformation[INDEX_OF_NAME];
+            int hours = Integer.parseInt(personInformation[INDEX_OF_DAYS]);
+            int salaryPerHour = Integer.parseInt(personInformation[INDEX_OF_PRICE]);
+            if (List.of(names).contains(nameOfEmployee) && !localDateFrom.isAfter(date)
+                    && !localDateTo.isBefore(date)) {
+                finalSalary[List.of(names).indexOf(nameOfEmployee)] += hours * salaryPerHour;
+            }
+        }
+        return dataToString(names, finalSalary, dateFrom, dateTo);
+    }
+
+    private String dataToString(String[] names, int[] salary, String dateFrom, String dateTo) {
+        StringBuilder resultString = new StringBuilder();
+        resultString
+                .append("Report for period ")
+                .append(dateFrom)
+                .append(" - ")
+                .append(dateTo);
+        for (int i = 0; i < names.length; i++) {
+            resultString
+                    .append(System.lineSeparator())
+                    .append(names[i])
+                    .append(" - ")
+                    .append(salary[i]);
+        }
+        return resultString.toString();
     }
 }