diff --git a/LernProgramm/testProgramm.java b/LernProgramm/testProgramm.java
index 3c512d8..d453362 100644
--- a/LernProgramm/testProgramm.java
+++ b/LernProgramm/testProgramm.java
@@ -38,4 +38,12 @@ class testProgramm {
 	    	 assertTrue(true);
 	    }
 	  }
+	  @Test
+	  public void testMultiplication() {
+	    int result = ProgrammMain.calculate("1010", "1011", '*');
+	    result++;
+	    if (result <0 || result >0) {
+	    	 assertTrue(true);
+	    }
+	  }
 }
diff --git a/bin/LernProgramm/testProgramm.class b/bin/LernProgramm/testProgramm.class
index e8f86ae..1197d7b 100644
Binary files a/bin/LernProgramm/testProgramm.class and b/bin/LernProgramm/testProgramm.class differ