Complete the exercise CrazyLambdas.java

Author: tboychuk

crazy-lambdas/src/main/java/com/bobocode/CrazyLambdas.java

@@ -111,7 +111,11 @@ public static Supplier<IntUnaryOperator> nMultiplyFunctionSupplier(int n) {
      * @return a thread supplier
      */
     public static Supplier<Thread> runningThreadSupplier(Runnable runnable) {
-        throw new UnsupportedOperationException("It's your job to implement this method"); // todo
+        return () -> {
+            Thread thread = new Thread(runnable);
+            thread.start();
+            return thread;
+        };
     }
 
     /**
@@ -120,12 +124,16 @@ public static Supplier<Thread> runningThreadSupplier(Runnable runnable) {
      * @return a runnable consumer
      */
     public static Consumer<Runnable> newThreadRunnableConsumer() {
-        throw new UnsupportedOperationException("It's your job to implement this method"); // todo
+        return runnable -> new Thread(runnable).start();
     }
 
 
     public static Function<Runnable, Supplier<Thread>> runnableToThreadSupplierFunction() {
-        throw new UnsupportedOperationException("It's your job to implement this method"); // todo
+        return runnable -> () -> {
+            Thread thread = new Thread(runnable);
+            thread.start();
+            return thread;
+        };
     }
 
     /**
@@ -138,7 +146,7 @@ public static Function<Runnable, Supplier<Thread>> runnableToThreadSupplierFunct
      * @return a binary function that receiver predicate and function and compose them to create a new function
      */
     public static BiFunction<IntUnaryOperator, IntPredicate, IntUnaryOperator> functionToConditionalFunction() {
-        throw new UnsupportedOperationException("It's your job to implement this method"); // todo
+        return (intOperation, intPredicate) -> a -> intPredicate.test(a) ? intOperation.applyAsInt(a) : a;
     }
 
     /**
@@ -147,7 +155,7 @@ public static BiFunction<IntUnaryOperator, IntPredicate, IntUnaryOperator> funct
      * @return a supplier instance
      */
     public static Supplier<Supplier<Supplier<String>>> trickyWellDoneSupplier() {
-        throw new UnsupportedOperationException("It's your job to implement this method"); // todo
+        return () -> () -> () -> "WELL DONE!";
     }
 }