java编程基础 </div>

 

[Java]代码    

import java.awt.image.BufferedImage;  import java.io.File;  import java.io.IOException;  import java.util.Scanner;    import javax.imageio.*;  public class FormatConversion {   public static final String JPG = "jpg";   public static final String GIF = "gif";   public static final String PNG = "png";   public static final String BMP = "bmp";   public static void main(String[] args) {    String src = "E:\\2.";    new FormatConversion().Conversion(JPG,PNG,src);//JPG转成PNG    new FormatConversion().Conversion(JPG,GIF,src);//JPG转成GIF    new FormatConversion().Conversion(JPG,BMP,src);//JPG转成BMP    //其余格式转化只要调用Conversion函数即可   }      //inputFormat表示原格式，outputFormat表示转化后的格式   public  void Conversion(String inputFormat,String outputFormat,String src){        try {     File input = new File(src+inputFormat);     BufferedImage bim = ImageIO.read(input);     File output = new File(src+outputFormat);     ImageIO.write(bim, outputFormat, output);    } catch (IOException e) {     e.printStackTrace();    }   }    }