tasks a-s

Task/Send-an-unknown-method-call/Java/send-an-unknown-method-call.java

@@ -0,0 +1,18 @@
+import java.lang.reflect.Method;
+
+class Example {
+  public int foo(int x) {
+    return 42 + x;
+  }
+}
+
+public class Main {
+  public static void main(String[] args) throws Exception {
+    Object example = new Example();
+    String name = "foo";
+    Class<?> clazz = example.getClass();
+    Method meth = clazz.getMethod(name, int.class);
+    Object result = meth.invoke(example, 5); // result is int wrapped in an object (Integer)
+    System.out.println(result);        // prints "47"
+  }
+}