The Invoke method function in the method class in Java reflection

First, the method class represents a way, so invoke (call) is the method that calls the methods class representative. It allows you to implement dynamic invocation, such as you can dynamically transfer the parameters. The following is a simple example.

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publicclassMethodTest{    publicstaticvoid main(String[] args)    {        String [] names ={"tom","tim","allen","alice"};        Class<?> clazz = Test.class;        try        {            Method method = clazz.getMethod("sayHi", String.class);            for(String name:names)                method.invoke(clazz.newInstance(),name);        } catch(NoSuchMethodException e)        {            e.printStackTrace();        } catch(IllegalAccessException e)        {            e.printStackTrace();        } catch(IllegalArgumentException e)        {            e.printStackTrace();        } catch(InvocationTargetException e)        {            e.printStackTrace();        } catch (InstantiationException e)        {            e.printStackTrace();        }    }}classTest{    publicvoidsayHi(String name)    {        System.out.println("Hi "+name);    }}

The Invoke method function in the method class in Java reflection