Added Create Date class & Unit Tests for all the cases (#8499)

core-java-modules/core-java-datetime-java8/src/main/java/com/baeldung/datebasics/CreateDate.java

@@ -0,0 +1,45 @@
+package com.baeldung.datebasics;
+
+import java.time.Clock;
+import java.time.LocalDate;
+import java.time.Month;
+import java.time.ZoneId;
+import java.time.format.DateTimeFormatter;
+
+public class CreateDate {
+	public LocalDate getTodaysDate() {
+		return LocalDate.now();
+	}
+
+	public LocalDate getTodaysDateFromClock() {
+		return LocalDate.now(Clock.systemDefaultZone());
+	}
+
+	public LocalDate getTodaysDateFromZone(String zone) {
+		return LocalDate.now(ZoneId.of(zone));
+	}
+
+	public LocalDate getCustomDateOne(int year, int month, int dayOfMonth) {
+		return LocalDate.of(year, month, dayOfMonth);
+	}
+
+	public LocalDate getCustomDateTwo(int year, Month month, int dayOfMonth) {
+		return LocalDate.of(year, month, dayOfMonth);
+	}
+
+	public LocalDate getDateFromEpochDay(long epochDay) {
+		return LocalDate.ofEpochDay(epochDay);
+	}
+
+	public LocalDate getDateFromYearAndDayOfYear(int year, int dayOfYear) {
+		return LocalDate.ofYearDay(year, dayOfYear);
+	}
+
+	public LocalDate getDateFromString(String date) {
+		return LocalDate.parse(date);
+	}
+
+	public LocalDate getDateFromStringAndFormatter(String date, String pattern) {
+		return LocalDate.parse(date, DateTimeFormatter.ofPattern(pattern));
+	}
+}

core-java-modules/core-java-datetime-java8/src/test/java/com/baeldung/datebasics/CreateDateUnitTest.java

@@ -0,0 +1,56 @@
+package com.baeldung.datebasics;
+
+import static org.junit.Assert.assertEquals;
+
+import java.time.Month;
+
+import org.junit.Test;
+
+public class CreateDateUnitTest {
+    private CreateDate date = new CreateDate();
+    
+    @Test
+    public void whenUsingNowMethod_thenLocalDate() {
+        assertEquals("2020-01-08", date.getTodaysDate());
+    }
+    
+    @Test
+    public void whenUsingClock_thenLocalDate() {
+        assertEquals("2020-01-08", date.getTodaysDateFromClock());
+    }
+    
+    @Test
+    public void givenValues_whenUsingZone_thenLocalDate() {
+        assertEquals("2020-01-08", date.getTodaysDateFromZone("Asia/Kolkata"));
+    }
+    
+    @Test
+    public void givenValues_whenUsingOfMethod_thenLocalDate() {
+        assertEquals("2020-01-08", date.getCustomDateOne(2020, 1, 8));
+    }
+    
+    @Test
+    public void givenValuesWithMonthEnum_whenUsingOfMethod_thenLocalDate() {
+        assertEquals("2020-01-08", date.getCustomDateTwo(2020, Month.JANUARY, 8));
+    }
+    
+    @Test
+    public void givenValues_whenUsingEpochDay_thenLocalDate() {
+        assertEquals("2020-01-08", date.getDateFromEpochDay(18269));
+    }
+    
+    @Test
+    public void givenValues_whenUsingYearDay_thenLocalDate() {
+        assertEquals("2020-01-08", date.getDateFromYearAndDayOfYear(2020, 8));
+    }
+    
+    @Test
+    public void givenValues_whenUsingParse_thenLocalDate() {
+        assertEquals("2020-01-08", date.getDateFromString("2020-01-08"));
+    }
+    
+    @Test
+    public void givenValuesWithFormatter_whenUsingParse_thenLocalDate() {
+        assertEquals("2020-01-08", date.getDateFromStringAndFormatter("8-Jan-2020", "d-MMM-yyyy"));
+    }
+}