Use this application to determine what image formats you can load and save in J2SE.
import javax.imageio.*;class picture{ public picture(){} void RWF() { //read image formats System.out.println("R-IF:"); String[] readFormats=ImageIO.getReaderFormatNames(); for(int i=0;i<readFormats.length;i++) System.out.println(readFormats[i]); //write image formats System.out.println("W-IF:"); String[] writeFormats=ImageIO.getWriterFormatNames(); for(int i=0;i