regex - How to transfer unicode string to another format in Java? -

i want query data "morristown\\u002c_new_jersey". because in database, "morristown\\u002c_new_jersey" "morristown\$002c_new_jersey". "\\u" become "\$" , lowercase in unicode become uppercase. there neat way process kinds of data?

here java code regex \\\\u([^_]+) replace unicode character code db equivalence:

string str = "jos\\u00e9_a\\u002e_santos"; matcher matcher = pattern.compile("\\\\u([^_]+)").matcher(str); stringbuffer sb = new stringbuffer(); while (matcher.find()) {   matcher.appendreplacement(sb, "\\\\\\$" + matcher.group(1).touppercase()); } matcher.appendtail(sb); system.out.println("the original string "+ str+ "\n has been converted "+ sb.tostring()); 

prints:

the original string jos\u00e9_a\u002e_santos  has been converted jos\$00e9_a\$002e_santos 

the code along matcher class documentation.

demo , regex explanation