java水平翻转

A. java实现图片旋转90度的问题

翻转来后源 orientation 属性为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翻转字符串

importjava.util.Scanner;

publicclassTurnString{
	publicstaticvoidmain(String[]args){
		Scannersc=newScanner(System.in);
		System.out.println("输入字符版串");
		Stringstr=sc.next();
		System.out.println("翻转前：权"+str);
		Strings="";
		for(inti=str.length()-1;i>=0;--i)
			s+=str.charAt(i);
		System.out.println("翻转后："+s);
	}

}