JavaCorner
diff --git a/‎src/main/java/com/ab/generics/advanced/IntersectionType.java‎
Lines changed: 38 additions & 0 deletions b/‎src/main/java/com/ab/generics/advanced/IntersectionType.java‎
Lines changed: 38 additions & 0 deletions
diff --git a/‎src/main/java/com/ab/generics/advanced/LambdaExpression.java‎
Lines changed: 42 additions & 0 deletions b/‎src/main/java/com/ab/generics/advanced/LambdaExpression.java‎
Lines changed: 42 additions & 0 deletions
@@ -0,0 +1,38 @@
+package com.ab.generics.advanced;
+
+import com.ab.generics.model.Person;
+
+import java.io.*;
+
+/**
+ * @author Arpit Bhardwaj
+ */
+public class IntersectionType {
+    public static void main(String[] args) throws FileNotFoundException {
+        IntersectionType intersectionType = new IntersectionType();
+
+        DataInputStream dataInputStream = new DataInputStream(new FileInputStream("src/main/resources/person"));
+        Person person = intersectionType.read(dataInputStream);
+
+        RandomAccessFile randomAccessFile = new RandomAccessFile("src/main/resources/person", "rw");
+        person = intersectionType.read(randomAccessFile);
+
+        System.out.println(person);
+    }
+
+    /*private Person read(DataInputStream source) {
+        try(DataInputStream input = source){
+            return new Person(input.readUTF(),input.readInt());
+        }catch(IOException e){
+            throw new RuntimeException(e);
+        }
+    }*/
+
+    private <T extends DataInput & Closeable> Person read(T source) {
+        try(T input = source){
+            return new Person(input.readUTF(),input.readInt());
+        }catch(IOException e){
+            throw new RuntimeException(e);
+        }
+    }
+}
@@ -0,0 +1,42 @@
+package com.ab.generics.advanced;
+
+import com.ab.generics.model.Employee;
+import com.ab.generics.model.Partner;
+import com.ab.generics.model.Person;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+
+import static java.util.stream.Collectors.counting;
+
+/**
+ * @author Arpit Bhardwaj
+ */
+public class LambdaExpression {
+
+    public static void main(String[] args) {
+        final Partner donDrapper = new Partner("Don Drapper", 89);
+        final Employee peggyOlson = new Employee("Peggy Olson", 65);
+        final Partner bertCooper = new Partner("Bert Cooper", 100);
+
+        Predicate<Person> isOld = person -> person.getAge() > 80;
+        System.out.println(isOld.test(donDrapper));
+        System.out.println(isOld.test(peggyOlson));
+
+        List<Person> personList = new ArrayList<>();
+        personList.add(donDrapper);
+        personList.add(peggyOlson);
+        personList.add(bertCooper);
+
+        Map<Boolean, List<Person>> collect = personList.stream()
+                .collect(Collectors.partitioningBy(isOld));
+        System.out.println(collect);
+
+        Map<Boolean, Long> collect2 = personList.stream()
+                .collect(Collectors.partitioningBy(isOld,counting()));
+        System.out.println(collect2);
+    }
+}