Initial commit.

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

@@ -1,7 +1,49 @@
 package core.basesyntax;
 
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.Objects;
+
 public class SalaryInfo {
+    private static final int DATE = 0;
+    private static final int NAME = 1;
+    private static final int HOURS = 2;
+    private static final int INCOME = 3;
+    private static final int DAY = 1;
+    private static final String DASH = " - ";
+    private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("dd.MM.yyyy");
+
     public String getSalaryInfo(String[] names, String[] data, String dateFrom, String dateTo) {
-        return null;
+        LocalDate dateFromDateFormat = changeDateFormat(dateFrom);
+        LocalDate dateToDateFormat = changeDateFormat(dateTo);
+        int[] salary = new int[names.length];
+
+        for (String dataRow : data) {
+            String[] dataInfo = dataRow.split(" ");
+            if (changeDateFormat(dataInfo[DATE]).isAfter(dateFromDateFormat.minusDays(DAY))
+                    && changeDateFormat(dataInfo[DATE]).isBefore(dateToDateFormat.plusDays(DAY))) {
+                for (int i = 0; i < names.length; i++) {
+                    if (Objects.equals(names[i], dataInfo[NAME])) {
+                        salary[i] += Integer.parseInt(dataInfo[HOURS])
+                                * Integer.parseInt(dataInfo[INCOME]);
+                    }
+                }
+            }
+        }
+        StringBuilder result = new StringBuilder("Report for period " + dateFrom
+                + " - " + dateTo + System.lineSeparator());
+        for (int i = 0; i < names.length; i++) {
+            if (i != names.length - 1) {
+                result.append(names[i]).append(DASH).append(salary[i])
+                        .append(System.lineSeparator());
+            } else {
+                result.append(names[i]).append(DASH).append(salary[i]);
+            }
+        }
+        return result.toString();
+    }
+
+    public LocalDate changeDateFormat(String stringDate) {
+        return LocalDate.parse(stringDate, FORMATTER);
     }
 }