android - How do I use the value of a variable AS a variable -

android - How do I use the value of a variable AS a variable -

haven't come across in coding android yet. how utilize value of 1 variable new variable.

i want take value of variable "file1.mp3" strip off extension , append text variable , utilize variable name file1_title.txt , file1_desc.txt.

so fname[1] might equal file1.mp3

and want create new variable

file1_title.txt equals "song title one"

file1_desc.txt equals "description of file one"

both based on value of fname[1]

fname[2] equals file2.mp3

file2_title.txt equals "song title two"

file2_desc.txt equals "description of file two"

both based on of value fname[2]

etc...

how done android

not sure if you're looking for. basic java string formating.

string attr1 = "song.mp3"; string attr2 = attr1.split(".")[0] + ".txt";

naturally add together necessary null checks.

==update==

so if understand correctly, file name ("asd.mp3") , need song title , description.

string attr1 = "song.mp3"; string songname = ""; string songdesc = ""; string[] splitarray = attr1.split("."); if(splitarray[0] != null){ string songname = attr1.split(".")[0]; file f = new file(path + songname +".txt"); //i didn't quite understand in format data, //especially description. however, in map //where songname key, suggested above, , here write description file(f)

}

android variables