Question

java 如何获取label中的图片，

File fileName = new File("C:\\Users\\Administrator\\Desktop");
JFileChooser chooser = new JFileChooser(fileName);
FileNameExtensionFilter filter = new FileNameExtensionFilter("JPG & GIF Images", "jpg", "gif");
chooser.setFileFilter(filter);
chooser.setFileSelectionMode(JFileChooser.FILES_ONLY);
int returnVal = chooser.showOpenDialog(new JPanel());
if(returnVal == JFileChooser.APPROVE_OPTION) {
File fileChooser = chooser.getSelectedFile();
byte[] b = new byte[(int)fileChooser.length()];
try {
InputStream input = new FileInputStream(fileChooser);
input.read(b);
input.close();
}catch(Exception arg1) {
arg1.printStackTrace();
}
addPicture.setIcon(new ImageIcon(b));
我从目录中选择一种图片放进label里面，我在另一个方法中如何获取这张图片

Answer 1

setIcon对应的get方法

Answer 2

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