JavaCorner
diff --git a/‎pom.xml‎
Lines changed: 2 additions & 2 deletions b/‎pom.xml‎
Lines changed: 2 additions & 2 deletions
diff --git a/‎src/main/java/com/ab/generics/basic/NamingGeneric.java‎
Lines changed: 31 additions & 0 deletions b/‎src/main/java/com/ab/generics/basic/NamingGeneric.java‎
Lines changed: 31 additions & 0 deletions
diff --git a/‎src/main/java/com/ab/generics/methods/ListMinimum.java‎
Lines changed: 5 additions & 0 deletions b/‎src/main/java/com/ab/generics/methods/ListMinimum.java‎
Lines changed: 5 additions & 0 deletions
diff --git a/‎src/main/java/com/ab/generics/wildcard/Unbounded.java‎
Lines changed: 20 additions & 1 deletion b/‎src/main/java/com/ab/generics/wildcard/Unbounded.java‎
Lines changed: 20 additions & 1 deletion
@@ -23,8 +23,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.7.0</version>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>11</source>
+                    <target>11</target>
                 </configuration>
             </plugin>
         </plugins>
 
@@ -0,0 +1,31 @@
+package com.ab.generics.basic;
+
+
+//Allowed
+public class NamingGeneric<C> {
+
+    public <M> M test(M t){
+        return null;
+    }
+
+    public <N> N test3(N t){
+        return null;
+    }
+    public <M> M test4(C t){
+        return null;
+    }
+    public <M> C test5(M t){
+        return null;
+    }
+    //here C hides the C Type at class level
+    public <C> C test2(C t){
+        return null;
+    }
+}
+//public class NamingGeneric<Object> {}
+//public class NamingGeneric<String>{}
+//public class NamingGeneric<NamingGeneric> {}
+
+//not allowed
+//public class NamingGeneric<?> {}
+
@@ -4,6 +4,7 @@
 import com.ab.generics.model.Person;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Comparator;
 import java.util.List;
 
@@ -48,4 +49,8 @@ private static Object min(List values, Comparator comparator) {
         }
         return lowestElement;
     }
+
+    public static void test(Collection<?> collection){
+
+    }
 }
@@ -3,6 +3,7 @@
 import com.ab.generics.model.Person;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
 
 /**
@@ -11,6 +12,15 @@
 public class Unbounded {
 
     public static void main(String[] args) {
+        //List objects = new ArrayList();
+        //List objects = new ArrayList(     );
+        //List objects = new ArrayList<>();
+        //List objects = new ArrayList<  >(    );
+        //List objects = new ArrayList<  Object   >(    );
+
+        //List<> objects = new ArrayList();//not allowed
+
+        //List<Object> objects = new ArrayList();
         List<Object> objects = new ArrayList<>();
         objects.add(1);
         objects.add("abc");
@@ -24,7 +34,7 @@ public static void main(String[] args) {
         objects2.add(null);
         //Compile time error
         //objects2.add(1);
-        //objects2.add("abc")
+        //objects2.add("abc");
         //objects2.add(new Object());
         //objects2.add(new Person("Nish", 28));
         System.out.println(objects2);
@@ -35,6 +45,15 @@ public static void main(String[] args) {
         objects3.add(new Person("Nish", 28));
         System.out.println(objects3);
 
+        //var objects4 = new HashSet<?>();//not allowed
+        //var objects4 = new HashSet<String>();//allowed
+        var objects4 = new HashSet<>();//implicit object type inferred
+        objects4.add(1);
+        objects4.add("abc");
+        objects4.add(new Object());
+        objects4.add(new Person("Nish", 28));
+        System.out.println(objects4);
+
 
     }
 }
Original file line number	Diff line number	Diff line change
`@@ -4,6 +4,7 @@`
`4`	`4`	`import com.ab.generics.model.Person;`
`5`	`5`
`6`	`6`	`import java.util.ArrayList;`
	`7`	`+import java.util.Collection;`
`7`	`8`	`import java.util.Comparator;`
`8`	`9`	`import java.util.List;`
`9`	`10`
`@@ -48,4 +49,8 @@ private static Object min(List values, Comparator comparator) {`
`48`	`49`	`}`
`49`	`50`	`return lowestElement;`
`50`	`51`	`}`
	`52`	`+`
	`53`	`+ public static void test(Collection<?> collection){`
	`54`	`+`
	`55`	`+ }`
`51`	`56`	`}`