java - Have a greater number than 256 android file output stream -

i using fos.write(some_number) when trying display number won't greater 255.

this second activity's code:

        fileoutputstream fos;         try {             fos = openfileoutput("income", context.mode_private); //"income" number written on textfield             fos.write(income);             fos.close();         } catch (ioexception e) {             // todo auto-generated catch block             e.printstacktrace();         } 

first activity's code:

try {         fileinputstream fis;         fis = openfileinput("income");         total_income = fis.read();         fis.close();     } catch (ioexception e) {         // todo auto-generated catch block         e.printstacktrace();     }     //...     //....     textview textview = (textview) findviewbyid(r.id.incomevalue);   textview.settext(""+ total_income); 

the write() method writes byte has range 0-255, won't more that.

better use dataoutputstream , datainputstream like:

fileoutputstream fos; try { fos = openfileoutput("income", context.mode_private); dataoutputstream dos = new dataoutputstream(fos); dos.writeint(income); dos.close(); fos.close(); } catch (ioexception e) { e.printstacktrace(); } 

and 1st activity:

try { fileinputstream fis; fis = openfileinput("income"); datainputstream dis = new datainputstream(fis); total_income = dis.readint(); dis.close(); fis.close(); } catch (ioexception e) { e.printstacktrace(); } textview textview = (textview) findviewbyid(r.id.incomevalue); textview.settext(""+ total_income);