java - How to turn 2D array rows into a tab separated string when writing an output file -

i have object writing output file.

bufferedwriter bufferedwriter = new bufferedwriter(new filewriter("output.txt"));                     bufferedwriter.write("id"+"\t"+"symbol"+"\t"+ arrays.tostring(data.symbols));             bufferedwriter.write("\n");             (int = 0; < data.cids.length; i++) {                 bufferedwriter.write(data.ids[i]+"\t"+data.isymbols[i]+"\t"                         +arrays.tostring(data.matdata[i])+"\n"); 

i table in output file:

id  symbol  [001, 002, 003, 004, 005] #1  a01 [2.3, 5.5, 4.5, 1.2, 3.3] #2  a02 [2.2, 4.5, 7.5, 6.2, 9.3] 

...and on. how can display arrays without brackets , tab-separated strings, output this:

id  symbol  001  002  003  004  005 #1   a01    2.3, 5.5, 4.5, 1.2  3.3 #2   a02    2.2  4.5  7.5  6.2  9.3 

you can implement own tostring method returns tab delimited string

something

public static string tostring(object[] array) {   stringbuilder builder = new stringbuilder();   for(object o: array)   {     builder.append(o+"\t");   }   return builder.tostring().trim();  }