Merge remote-tracking branch 'upstream/master'

core-java-8/README.md

@@ -30,3 +30,5 @@
 - [The Difference Between map() and flatMap()](http://www.baeldung.com/java-difference-map-and-flatmap)
 - [Merging Streams in Java](http://www.baeldung.com/java-merge-streams)
 - [“Stream has already been operated upon or closed” Exception in Java](http://www.baeldung.com/java-stream-operated-upon-or-closed-exception)
+- [Display All Time Zones With GMT And UTC in Java](http://www.baeldung.com/java-time-zones)
+- [Copy a File with Java](http://www.baeldung.com/java-copy-file)

core-java/README.md

@@ -118,4 +118,5 @@
 - [A Guide to the Static Keyword in Java](http://www.baeldung.com/java-static)
 - [Initializing Arrays in Java](http://www.baeldung.com/java-initialize-array)
 - [Guide to Java String Pool](http://www.baeldung.com/java-string-pool)
+- [Copy a File with Java](http://www.baeldung.com/java-copy-file)
 

core-java/src/test/java/com/baeldung/string/formatter/StringFormatterExampleTests.java

@@ -14,7 +14,8 @@ public class StringFormatterExampleTests {
     public void givenString_whenFormatSpecifierForCalendar_thenGotExpected() {
         //Syntax of Format Specifiers for Date/Time Representation
         Calendar c = new GregorianCalendar(2017, 11, 10);
-        String s = String.format("The date is: %1$tm %1$te,%1$tY", c);
+        String s = String.format("The date is: %tm %1$te,%1$tY", c);
+
 
         assertEquals("The date is: 12 10,2017", s);
     }
@@ -84,7 +85,7 @@ public class StringFormatterExampleTests {
     public void givenString_whenLineSeparatorConversion_thenConvertedString() {        
         //Line Separator Conversion
         String s = String.format("First Line %nSecond Line");
-        assertEquals("First Line \n"
+        assertEquals("First Line " + System.getProperty("line.separator")
                 + "Second Line", s);
     }
 
@@ -114,10 +115,10 @@ public class StringFormatterExampleTests {
     public void givenString_whenSpecifyArgumentIndex_thenGotExpected() {
         Calendar c = new GregorianCalendar(2017, 11, 10);
         //Argument_Index
-        String s = String.format("The date is: %1$tm %1$te,%1$tY", c);
+        String s = String.format("The date is: %tm %1$te,%1$tY", c);
         assertEquals("The date is: 12 10,2017", s);
        
-        s = String.format("The date is: %1$tm %<te,%<tY", c);
+        s = String.format("The date is: %tm %<te,%<tY", c);
         assertEquals("The date is: 12 10,2017", s);
     }
 
@@ -126,8 +127,7 @@ public class StringFormatterExampleTests {
         //Using String Formatter with Appendable
         StringBuilder sb = new StringBuilder();
         Formatter formatter = new Formatter(sb);
-        formatter.format("I am writting to a %1$s Instance.", sb.getClass());
+        formatter.format("I am writting to a %s Instance.", sb.getClass());
-
         assertEquals("I am writting to a class java.lang.StringBuilder Instance.", sb.toString());
     }
     

jsonb/pom.xml

@@ -98,7 +98,7 @@
 		<jsonb-api.version>1.0</jsonb-api.version>
 		<johnzon.version>1.1.3</johnzon.version>
 		<geronimo-json_1.1_spec.version>1.0</geronimo-json_1.1_spec.version>
-		<yasson.version>1.0</yasson.version>
+		<yasson.version>1.0.1</yasson.version>
 		<javax.json.version>1.1.2</javax.json.version>
 		<commons-collections4.version>4.1</commons-collections4.version>
 	</properties>

jsonb/src/main/java/com/baeldung/adapter/PersonAdapter.java

@@ -0,0 +1,26 @@
+package com.baeldung.adapter;
+
+import javax.json.Json;
+import javax.json.JsonObject;
+import javax.json.bind.adapter.JsonbAdapter;
+
+import com.baeldung.jsonb.Person;
+
+public class PersonAdapter implements JsonbAdapter<Person, JsonObject> {
+
+    @Override
+    public JsonObject adaptToJson(Person p) throws Exception {
+        return Json.createObjectBuilder()
+            .add("id", p.getId())
+            .add("name", p.getName())
+            .build();
+    }
+
+    @Override
+    public Person adaptFromJson(JsonObject adapted) throws Exception {
+        Person person = new Person();
+        person.setId(adapted.getInt("id"));
+        person.setName(adapted.getString("name"));
+        return person;
+    }
+}

jsonb/src/main/java/com/baeldung/jsonb/Person.java

@@ -22,10 +22,10 @@ public class Person {
     private BigDecimal salary;
 
     public Person() {
+        this(0, "", "", 0, LocalDate.now(), new BigDecimal(0));
     }
 
     public Person(int id, String name, String email, int age, LocalDate registeredDate, BigDecimal salary) {
-        super();
         this.id = id;
         this.name = name;
         this.email = email;

jsonb/src/test/java/com/baeldung/jsonb/JsonbTest.java

@@ -17,6 +17,8 @@ import javax.json.bind.config.PropertyOrderStrategy;
 import org.apache.commons.collections4.ListUtils;
 import org.junit.Test;
 
+import com.baeldung.adapter.PersonAdapter;
+
 public class JsonbTest {
 
     @Test
@@ -155,4 +157,32 @@ public class JsonbTest {
             .equals(person));
     }
 
+    @Test
+    public void givenPersonObject_whenSerializeWithAdapter_thenGetPersonJson() {
+        JsonbConfig config = new JsonbConfig().withAdapters(new PersonAdapter());
+        Jsonb jsonb = JsonbBuilder.create(config);
+        Person person = new Person(1, "Jhon", "jhon@test.com", 0, LocalDate.of(2019, 9, 7), BigDecimal.valueOf(1000.0));// new Person(1, "Jhon");
+        String jsonPerson = jsonb.toJson(person);
+        // @formatter:off
+        String jsonExpected = 
+            "{\"id\":1," +
+             "\"name\":\"Jhon\"}";
+        // @formatter:on
+        assertTrue(jsonExpected.equals(jsonPerson));
+    }
+
+    @Test
+    public void givenPersonJson_whenDeserializeWithAdapter_thenGetPersonObject() {
+        JsonbConfig config = new JsonbConfig().withAdapters(new PersonAdapter());
+        Jsonb jsonb = JsonbBuilder.create(config);
+        Person person = new Person(1, "Jhon", "jhon@test.com", 0, LocalDate.of(2019, 9, 7), BigDecimal.valueOf(1000.0));// new Person(1, "Jhon");
+        // @formatter:off
+        String jsonPerson = 
+            "{\"id\":1," +
+             "\"name\":\"Jhon\"}";
+        // @formatter:on
+        assertTrue(jsonb.fromJson(jsonPerson, Person.class)
+            .equals(person));
+    }
+
 }