hi all i convert a mp3 file into byte array and i read from byte array but it shows null pointer exception on line number 15 my code:
public class MainClass {
static byte[] bytesarray = null;
public static void main(String args[]){
try {
FileInputStream fis=new FileInputStream("D:\\taxi.mp3");
try {
fis.read(bytesarray,0,32);
System.out.println(bytesarray.length);
} catch (IOException e) {
e.printStackTrace();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
ByteArrayInputStream in = new ByteArrayInputStream(bytesarray);
for (int i=0; i<32; i++) {
int c;
while ((c = in.read()) != -1) {
if (i == 0) {
System.out.print((char) c);
} else {
System.out.print(Character.toUpperCase((char) c));
}
}
System.out.println();
}
} }
static byte[] bytesarray = new byte[32];
should do the work, you didn't initialize your array...
See the documentation of read .
static byte[] bytesarray = new byte[32];
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