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import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; public class ReflectionDemo1 { public static void main(String[] args) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException { // 實(shí)例化字符串對象 String name = new String("Colorful"); // 獲取 method 對象 Method method = String.class.getMethod("replace", CharSequence.class, CharSequence.class); // 調(diào)用 invoke() 執(zhí)行方法 String result = (String) method.invoke(name, "ful", ""); System.out.println(result); } }