Check instanceof a type from name

Question

I want to do this: Get a type from a name, and the fail a test if the message. I suppose it doesn't work because clazz is not a type. But how do I go about this?

Class<?> clazz=Class.forName("com.android.test."+myEnum.toString());

if(myObj instanceof clazz)
    Assert.fail();

http://stackoverflow.com/questions/949352/is-there-something-like-instanceofclass-c-in-java second google result... — kajacx, Mar 05 '14 at 17:44

score 2 · Answer 1 · answered Mar 05 '14 at 17:47

Use isInstance (http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#isInstance%28java.lang.Object%29):

    Class<?> clazz=Class.forName("java.lang.String");
    String myObj = "string";        
    if(clazz.isInstance(myObj)){
       System.out.println("Its String Class");
    }

score 1 · Answer 2 · answered Mar 05 '14 at 17:48

1

Class<?> clazz=Class.forName("com.android.test."+myEnum.toString());

if(clazz.isAssignableFrom(myObj.class))
   Assert.fail();

See its JavaDoc: http://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#isAssignableFrom(java.lang.Class)

answered Mar 05 '14 at 17:48

aliteralmind

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Check instanceof a type from name

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