java Programming Glossary: method.invoke
Adding files to java classpath at runtime http://stackoverflow.com/questions/1010919/adding-files-to-java-classpath-at-runtime addURL parameters method.setAccessible true method.invoke sysloader new Object u catch Throwable t t.printStackTrace throw..
Bug or feature: Swing default gui font incorrect for Win6+ http://stackoverflow.com/questions/11309861/bug-or-feature-swing-default-gui-font-incorrect-for-win6 String.class Object.class method.setAccessible true method.invoke instance propertyName propertyValue catch NoSuchMethodException..
How do I invoke a Java method when given the method name as a string? http://stackoverflow.com/questions/160970/how-do-i-invoke-a-java-method-when-given-the-method-name-as-a-string methodName . Then you invoke that method by calling try method.invoke obj arg1 arg2 ... catch IllegalArgumentException e catch IllegalAccessException..
What would be the fastest method to test for primality in Java? http://stackoverflow.com/questions/2385909/what-would-be-the-fastest-method-to-test-for-primality-in-java int primeCount 0 for int i 0 i 1000000 i if Boolean method.invoke prime i primeCount long endTime System.currentTimeMillis..
invoking a static method using reflection http://stackoverflow.com/questions/2467544/invoking-a-static-method-using-reflection method clazz.getMethod methodName String.class Object o method.invoke null whatever In case the method is private use getDeclaredMethod..
How do you change the CLASSPATH within Java? http://stackoverflow.com/questions/252893/how-do-you-change-the-classpath-within-java addURL new Class URL.class method.setAccessible true method.invoke classLoader new Object url addURL new File conf .toURL This..
Using Java reflection to create eval() method http://stackoverflow.com/questions/2621251/using-java-reflection-to-create-eval-method Main Method method cl.getMethod s String.class method.invoke null woohoo This works perfectly of course there is a try catch..
How to get the fields in an Object via reflection? http://stackoverflow.com/questions/2989560/how-to-get-the-fields-in-an-object-via-reflection get method.getName .startsWith is Object value method.invoke someObject if value null System.out.println method.getName..
Android 2.2 wifi hotspot API http://stackoverflow.com/questions/3023226/android-2-2-wifi-hotspot-api WifiConfiguration.GroupCipher.TKIP try method.invoke wifi netConfig true catch IllegalArgumentException e e.printStackTrace..
What's the proper way to test a class with private methods using JUnit? http://stackoverflow.com/questions/34571/whats-the-proper-way-to-test-a-class-with-private-methods-using-junit methodName argClasses method.setAccessible true return method.invoke targetObject argObjects And for fields Field field targetClass.getDeclaredField..
Jasper Reports in JSP page http://stackoverflow.com/questions/3475186/jasper-reports-in-jsp-page new JRException No getter for field name try return method.invoke current catch Exception e throw new JRException Exception..
Java Dynamically Loading a class http://stackoverflow.com/questions/3580752/java-dynamically-loading-a-class Method method getAddUrlMethod method.setAccessible true method.invoke urlClassLoader new Object u catch final Exception e throw new..
What is reflection, and why is it useful? http://stackoverflow.com/questions/37628/what-is-reflection-and-why-is-it-useful foo Method method foo.getClass .getMethod doSomething null method.invoke foo null One very common use case in Java is the usage with..
How to emit and execute Java bytecode at runtime? http://stackoverflow.com/questions/4016305/how-to-emit-and-execute-java-bytecode-at-runtime Method method helloWorldClass.getMethod main String .class method.invoke null Object new String To generate the code I found very useful..
Android application Wi-Fi device - AP connectivity http://stackoverflow.com/questions/5233068/android-application-wi-fi-device-ap-connectivity try boolean apstatus Boolean method.invoke wifiManager netConfig true statusView.setText Creating a Wi.. .equals isWifiApEnabled while Boolean isWifiApEnabledmethod.invoke wifiManager for Method method1 wmMethods if method1.getName..
How to call a superclass method using Java reflection http://stackoverflow.com/questions/5411434/how-to-call-a-superclass-method-using-java-reflection method ArrayUtils.EMPTY_CLASS_ARRAY Object value method.invoke obj ArrayUtils.EMPTY_OBJECT_ARRAY But the above code will still..
How should I load Jars dynamically at runtime? http://stackoverflow.com/questions/60764/how-should-i-load-jars-dynamically-at-runtime Object instance classToLoad.newInstance Object result method.invoke instance Painful but there it is. share improve this answer..
Any way to Invoke a private method? http://stackoverflow.com/questions/880365/any-way-to-invoke-a-private-method methodName method.setAccessible true Object r method.invoke object There are a couple of caveats. First getDeclaredMethod..
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