Android 中利用反射技术实现加减乘除

核心提示：int.class, int.class });// 调用查找 到的方法执行此方法的处理Object result = addMethod.invoke(invokeOperation, new Object[] {new Integer(first), new Integer(second) });return re

int.class, int.class });

// 调用查找 到的方法执行此方法的处理

Object result = addMethod.invoke(invokeOperation, new Object[] {

new Integer(first), new Integer(second) });

return result.toString();

} else if (oper.equals("-")) {

Method cutMethod = classType.getMethod("cut", new Class[] {

int.class, int.class });

Object result = cutMethod.invoke(invokeOperation, new Object[] {

new Integer(first), new Integer(second) });

return result.toString();

} else if (oper.equals("*")) {

Method rideMethod = classType.getMethod("ride", new Class[] {

int.class, int.class });

Object result = rideMethod.invoke(invokeOperation, new Object[] {

new Integer(first), new Integer(second) });

return result.toString();

} else if (oper.equals("/")) {

Method execMthod = classType.getMethod("Except", new Class[] {

int.class, int.class });

Object result = execMthod.invoke(invokeOperation, new Object[] {

new Integer(first), new Integer(second) });

return result.toString();

}

return "";

}

}

Tip:在JAVA中可以通过main 函数打印，在Android 好像调用会出错。via:http://www.cnblogs.com/TerryBlog/archive/2010/08/17/1801559.html