Java I/O - 如何以十六進(jìn)制顯示文件內(nèi)容

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import java.io.FileInputStream;
public class Main {
  public static void main(String[] args) throws Exception {
    FileInputStream fis = new FileInputStream("main.java");
    int i = 0;
    int count = 0;
    while ((i = fis.read()) != -1) {
      if (i != -1) {
        System.out.printf("%02X ", i);
        count++;
      }
      if (count == 16) {
        System.out.println("");
        count = 0;
      }
    }
    fis.close();
  }
}
 
 
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