Difference between revisions of "Java reflection"
From John Freier
| Line 7: | Line 7: | ||
Constructor<AClazz> constructor = AClazz.class.getConstructor(a); | Constructor<AClazz> constructor = AClazz.class.getConstructor(a); | ||
return (AClazz) constructor.newInstance("hello"); | return (AClazz) constructor.newInstance("hello"); | ||
| + | |||
| + | |||
| + | Invoke a method | ||
| + | Class<?> c = Class.forName("class name"); | ||
| + | Method method = c.getDeclaredMethod ("method name", parameterTypes) | ||
| + | method.invoke (objectToInvokeOn, params) | ||
Latest revision as of 09:24, 9 May 2012
Reflection
This is an example of reflection, Creating an instants
AClazz a = new AClass("hello");
Class<?> AClazz = a.getClass();
Constructor<AClazz> constructor = AClazz.class.getConstructor(a);
return (AClazz) constructor.newInstance("hello");
Invoke a method
Class<?> c = Class.forName("class name");
Method method = c.getDeclaredMethod ("method name", parameterTypes)
method.invoke (objectToInvokeOn, params)
