BAEL-2861 Fix example in Lambda Expressions article (#6696)

core-java-8/src/main/java/com/baeldung/Adder.java

@@ -1,12 +0,0 @@
-package com.baeldung;
-
-import java.util.function.Consumer;
-import java.util.function.Function;
-
-public interface Adder {
-
-    String addWithFunction(Function<String, String> f);
-
-    void addWithConsumer(Consumer<Integer> f);
-
-}

core-java-8/src/main/java/com/baeldung/AdderImpl.java

@@ -1,18 +0,0 @@
-package com.baeldung;
-
-
-import java.util.function.Consumer;
-import java.util.function.Function;
-
-public class AdderImpl implements Adder {
-
-    @Override
-    public String addWithFunction(final Function<String, String> f) {
-        return f.apply("Something ");
-    }
-
-    @Override
-    public void addWithConsumer(final Consumer<Integer> f) {
-    }
-
-}

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Bar.java

@@ -1,4 +1,4 @@
-package com.baeldung;
+package com.baeldung.java8.lambda.tips;
 
 
 @FunctionalInterface

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Baz.java

@@ -1,4 +1,4 @@
-package com.baeldung;
+package com.baeldung.java8.lambda.tips;
 
 
 @FunctionalInterface

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Foo.java

@@ -1,4 +1,4 @@
-package com.baeldung;
+package com.baeldung.java8.lambda.tips;
 
 
 @FunctionalInterface

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/FooExtended.java

@@ -1,4 +1,4 @@
-package com.baeldung;
+package com.baeldung.java8.lambda.tips;
 
 
 @FunctionalInterface

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/Processor.java

@@ -0,0 +1,12 @@
+package com.baeldung.java8.lambda.tips;
+
+import java.util.concurrent.Callable;
+import java.util.function.Supplier;
+
+public interface Processor {
+
+    String processWithCallable(Callable<String> c) throws Exception;
+
+    String processWithSupplier(Supplier<String> s);
+
+}

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/ProcessorImpl.java

@@ -0,0 +1,20 @@
+package com.baeldung.java8.lambda.tips;
+
+
+import java.util.concurrent.Callable;
+import java.util.function.Consumer;
+import java.util.function.Function;
+import java.util.function.Supplier;
+
+public class ProcessorImpl implements Processor {
+
+    @Override
+    public String processWithCallable(Callable<String> c) throws Exception {
+        return c.call();
+    }
+
+    @Override
+    public String processWithSupplier(Supplier<String> s) {
+        return s.get();
+    }
+}

core-java-8/src/main/java/com/baeldung/java8/lambda/tips/UseFoo.java

@@ -1,4 +1,4 @@
-package com.baeldung;
+package com.baeldung.java8.lambda.tips;
 
 
 import java.util.function.Function;

core-java-8/src/test/java/com/baeldung/java8/lambda/tips/Java8FunctionalInteracesLambdasUnitTest.java

@@ -1,8 +1,8 @@
-package com.baeldung.java8;
+package com.baeldung.java8.lambda.tips;
 
-import com.baeldung.Foo;
-import com.baeldung.FooExtended;
-import com.baeldung.UseFoo;
+import com.baeldung.java8.lambda.tips.Foo;
+import com.baeldung.java8.lambda.tips.FooExtended;
+import com.baeldung.java8.lambda.tips.UseFoo;
 import org.junit.Before;
 import org.junit.Test;