java水平翻轉

A. java實現圖片旋轉90度的問題

翻轉來後源 orientation 屬性為6 。

public static void main(String[] args) throws ImageProcessingException, IOException {
File jpegFile= new File("C:\\Users\\Administrator\\Desktop\\IMG_0362.JPG");

Metadata metadata = ImageMetadataReader.readMetadata(jpegFile);
Directory directory = metadata.getDirectory(ExifIFD0Directory.class);
JpegDirectory jpegDirectory = (JpegDirectory)metadata.getDirectory(JpegDirectory.class);

// int orientation =0;

B. java翻轉字元串

importjava.util.Scanner;

publicclassTurnString{
	publicstaticvoidmain(String[]args){
		Scannersc=newScanner(System.in);
		System.out.println("輸入字元版串");
		Stringstr=sc.next();
		System.out.println("翻轉前：權"+str);
		Strings="";
		for(inti=str.length()-1;i>=0;--i)
			s+=str.charAt(i);
		System.out.println("翻轉後："+s);
	}

}