java獲取圖片大小和尺寸

package stone;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

import javax.imageio.ImageIO;

public class CalPit {
	public static void main(String[] args) throws FileNotFoundException, IOException {
		File picture = new File("C:/Users/Administrator/Pictures/我的圖片/neusoft.png");
		BufferedImage sourceImg =ImageIO.read(new FileInputStream(picture)); 
		System.out.println(String.format("%.1f",picture.length()/1024.0));
		System.out.println(sourceImg.getWidth());
		System.out.println(sourceImg.getHeight());
	}
}