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通过反射机制调用类的方法,主要用到下面的方法:
public Object invoke(Object obj, Object... args)
参数:
下面是一个具体的示例:
package thread;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;public class Teacher { public String getName(String name, String address, Integer age) { return name + "是一名人民教师,在"+address+","+age+"岁"; } public static void main(String[] args) { try { Class clazz = Class.forName("thread.Teacher"); Method method = clazz.getMethod("getName", String.class, String.class, Integer.class); Object obj = method.invoke(clazz.newInstance(), "李梅","上海", 21); System.out.println(obj); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (NoSuchMethodException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InstantiationException e) { // TODO Auto-generated catch block e.printStackTrace(); } }}
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