Challenge 39.

JavaZakariae · JavaZakariae · commit 5826adbd9a22 · 2019-11-11T18:54:21.000+01:00
Stream, filter method behaviour.
diff --git a/src/main/java/challenge31_40/Challenge_39.java b/src/main/java/challenge31_40/Challenge_39.java
@@ -0,0 +1,39 @@
+package challenge31_40;
+
+import java.util.List;
+
+/**
+ *
+ */
+public class Challenge_39 {
+    public static void main( String[] args ) {
+
+        List<Jedi> jediList = List.of(new Jedi("Luke", 20),
+                new Jedi("Obiman", 30), new Jedi("QinGon", 40));
+
+        jediList.stream()
+                .filter(jedi -> jedi.name.startsWith("Obi") || jedi.name.startsWith("Luke"))
+                .filter(jedi -> jedi.name.startsWith("QinGon"))
+                .map(Jedi::getAge)
+                .filter(age->age>10)
+                .forEach(System.out::println);
+    }
+
+    static class Jedi {
+        private String name;
+        private int age;
+
+        public Jedi( String name, int age ) {
+            this.name = name;
+            this.age = age;
+        }
+
+        public int getAge() {
+            return age;
+        }
+
+        public String getName() {
+            return name;
+        }
+    }
+}
