formatting cleanup

core-java-8/src/main/java/com/baeldung/doublecolumn/Computer.java

@@ -1,6 +1,5 @@
 package com.baeldung.doublecolumn;
 
-
 public class Computer {
 
     private Integer age;
@@ -47,21 +46,20 @@ public class Computer {
 
     @Override
     public String toString() {
-        return "Computer{" +
+        return "Computer{" + "age=" + age + ", color='" + color + '\'' + ", healty=" + healty + '}';
-                "age=" + age +
-                ", color='" + color + '\'' +
-                ", healty=" + healty +
-                '}';
     }
 
     @Override
     public boolean equals(Object o) {
-        if (this == o) return true;
+        if (this == o)
-        if (o == null || getClass() != o.getClass()) return false;
+            return true;
+        if (o == null || getClass() != o.getClass())
+            return false;
 
         Computer computer = (Computer) o;
 
-        if (age != null ? !age.equals(computer.age) : computer.age != null) return false;
+        if (age != null ? !age.equals(computer.age) : computer.age != null)
+            return false;
         return color != null ? color.equals(computer.color) : computer.color == null;
 
     }

core-java-8/src/main/java/com/baeldung/doublecolumn/ComputerUtils.java

@@ -7,7 +7,6 @@ import java.util.List;
 
 public class ComputerUtils {
 
-
     public static final ComputerPredicate after2010Predicate = (c) -> (c.getAge() > 2010);
     public static final ComputerPredicate blackPredicate = (c) -> "black".equals(c.getColor());
 
@@ -19,12 +18,10 @@ public class ComputerUtils {
         return result;
     }
 
-
     public static void repair(Computer computer) {
         if (computer.getHealty() < 50) {
             computer.setHealty(100);
         }
     }
 
-
 }

core-java-8/src/main/java/com/baeldung/doublecolumn/function/ComputerPredicate.java

@@ -2,7 +2,6 @@ package com.baeldung.doublecolumn.function;
 
 import com.baeldung.doublecolumn.Computer;
 
-
 @FunctionalInterface
 public interface ComputerPredicate {
 

core-java-8/src/main/java/com/baeldung/doublecolumn/function/TriFunction.java

@@ -8,8 +8,7 @@ public interface TriFunction<A,B,C,R> {
 
     R apply(A a, B b, C c);
 
-    default <V> TriFunction<A, B, C, V> andThen(
+    default <V> TriFunction<A, B, C, V> andThen(Function<? super R, ? extends V> after) {
-            Function<? super R, ? extends V> after) {
         Objects.requireNonNull(after);
         return (A a, B b, C c) -> after.apply(apply(a, b, c));
     }

core-java-8/src/test/java/com/baeldung/doublecolumn/TestComputerUtils.java

@@ -13,7 +13,6 @@ import static com.baeldung.doublecolumn.ComputerUtils.*;
 
 public class TestComputerUtils {
 
-
     @Before
     public void setup() {
     }