Merge pull request #14243 from thibaultfaure/article/BAEL-5600

BAEL-5600 Code for the Read Date in Java using Scanner article

core-java-modules/core-java-io-apis-3/README.md

@@ -0,0 +1,5 @@
+## Core Java IO APIs
+
+This module contains articles about core Java input/output(IO) APIs.
+
+### Relevant Articles:

core-java-modules/core-java-io-apis-3/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-io-apis-3</artifactId>
+    <name>core-java-io-apis-3</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+</project>

core-java-modules/core-java-io-apis-3/src/main/java/com/baeldung/scanner/DateScanner.java

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+package com.baeldung.scanner;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+import java.util.Date;
+import java.util.Scanner;
+
+public class DateScanner {
+
+    LocalDate scanToLocalDate(String input) {
+        try (Scanner scanner = new Scanner(input)) {
+            String dateString = scanner.next();
+            DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
+            return LocalDate.parse(dateString, formatter);
+        }
+    }
+
+    Date scanToDate(String input) throws ParseException {
+        try (Scanner scanner = new Scanner(input)) {
+            String dateString = scanner.next();
+            DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
+            return formatter.parse(dateString);
+        }
+    }
+
+}

core-java-modules/core-java-io-apis-3/src/test/java/com/baeldung/scanner/DateScannerUnitTest.java

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+package com.baeldung.scanner;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.time.LocalDate;
+import java.time.format.DateTimeFormatter;
+
+import org.junit.jupiter.api.Test;
+
+class DateScannerUnitTest {
+
+    @Test
+    void whenScanToLocalDate_ThenCorrectLocalDate() {
+        String dateString = "2018-09-09";
+        assertEquals(LocalDate.parse(dateString, DateTimeFormatter.ofPattern("yyyy-MM-dd")), new DateScanner().scanToLocalDate(dateString));
+    }
+
+    @Test
+    void whenScanToDate_ThenCorrectDate() throws ParseException {
+        String dateString = "2018-09-09";
+        assertEquals(new SimpleDateFormat("yyyy-MM-dd").parse(dateString), new DateScanner().scanToDate(dateString));
+    }
+
+}

core-java-modules/pom.xml

@@ -81,6 +81,7 @@
         <module>core-java-io-4</module>
         <module>core-java-io-apis</module>
         <module>core-java-io-apis-2</module>
+        <module>core-java-io-apis-3</module>
         <module>core-java-io-conversions</module>
         <module>core-java-jar</module>
         <module>core-java-jndi</module>