Image image = new Image(Display.getDefault(), browser.getBounds());用反射怎么写
时间: 2023-07-16 12:14:33 浏览: 79
可以使用反射来获取`Image`类的构造方法和`Display`类的静态方法`getDefault()`,并调用它们来创建一个新的`Image`对象。代码示例如下:
```
try {
// 获取 Image 类的构造方法
Constructor<?> imageConstructor = Image.class.getConstructor(Display.class, Rectangle.class);
// 获取 Display 类的静态方法 getDefault()
Method getDefaultMethod = Display.class.getMethod("getDefault");
// 调用 getDefault() 方法获取默认 Display 对象
Object defaultDisplay = getDefaultMethod.invoke(null);
// 创建一个新的 Rectangle 对象来表示浏览器的大小
Rectangle bounds = browser.getBounds();
// 调用 Image 构造方法创建新的 Image 对象
Image image = (Image) imageConstructor.newInstance(defaultDisplay, bounds);
} catch (Exception e) {
e.printStackTrace();
}
```
需要注意的是,使用反射可以动态地获取类和方法,但也会带来一定的性能损失和代码可读性降低的问题。因此,只有在必要的情况下才应该使用反射。
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