Chapter 1 examples

Author: jsuereth

chapter1/jvm-examples/FunctionalUtil.scala

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+object FunctionUtil {
+  def testFunction(f : Int => Int) : Int = f(5)
+}
+
+abstract class AbstractFunctionIntIntForJava extends (Int => Int) {
+}
+

chapter1/jvm-examples/JavaFunction.java

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+class JavaFunction {
+  public static void main(String[] args) {
+	System.out.println(FunctionUtil.testFunction((scala.Function1<Integer,Integer>)new AbstractFunctionIntIntForJava() {
+      public Integer apply(Integer argument) {
+        return argument + 5;
+      }
+    }));
+  }
+}

chapter1/jvm-examples/JavaTest.java

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+
+class JavaTest {
+  public static void main(String[] args) {
+    ScalaUtils.log("Hello!");
+    ScalaUtils$.MODULE$.log("Hello!");
+    System.out.println(ScalaUtils.MAX_LOG_SIZE());
+    System.out.println(ScalaUtils$.MODULE$.MAX_LOG_SIZE());
+  }
+}

chapter1/jvm-examples/ScalaUtils.scala

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+object ScalaUtils {
+  def log(msg : String) : Unit = Console.println(msg)
+  val MAX_LOG_SIZE = 1056
+}