Salary. First solution

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

@@ -1,7 +1,49 @@
 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 report = new StringBuilder();
+        report.append("Report for period ")
+                .append(dateFrom)
+                .append(" - ")
+                .append(dateTo)
+                .append(System.lineSeparator());
+
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd.MM.yyyy");
+        LocalDate startDate = LocalDate.parse(dateFrom, formatter);
+        LocalDate endDate = LocalDate.parse(dateTo, formatter);
+
+        for (String worker : names) {
+            int salary = 0;
+
+            for (String dataIndex : data) {
+                String[] dataArray = dataIndex.split(" ");
+                String dataStr = dataArray[0];
+                String workerName = dataArray[1];
+                String workHour = dataArray[2];
+                String salaryPerHour = dataArray[3];
+
+                LocalDate workingDay = LocalDate.parse(dataStr, formatter);
+
+                if ((worker.equals(workerName))
+                        && (!workingDay.isBefore(startDate))
+                        && (!workingDay.isAfter(endDate))) {
+                    salary += Integer.parseInt(workHour) * Integer.parseInt(salaryPerHour);
+                }
+            }
+            report.append(worker)
+                    .append(" - ")
+                    .append(salary);
+
+            if (!worker.equals(names[names.length - 1])) {
+                report.append(System.lineSeparator());
+            }
+        }
+
+        return report.toString();
     }
 }

src/test/java/core/basesyntax/SalaryInfoTest.java

@@ -80,7 +80,7 @@ public class SalaryInfoTest {
                     "Kate - 2140";
 
     @Test
-    public void getSalaryInfoByMonth() {
+    public void getSalaryInfoByMonth() throws Exception {
         SalaryInfo salary = new SalaryInfo();
         for (int i = 0; i < dates.length; i++) {
             String actualResult = salary.getSalaryInfo(sampleNames, scriptArray, dates[0], dates[i]);
@@ -96,7 +96,7 @@ public void getSalaryInfoByMonth() {
     }
 
     @Test
-    public void getSalaryInfoByTwoMonths() {
+    public void getSalaryInfoByTwoMonths() throws Exception {
         SalaryInfo salary = new SalaryInfo();
         String actualResult = salary.getSalaryInfo(sampleNames, secondScriptArray,
                 secondDates[0], secondDates[1]);