weird number conversion in Java -

i testing , calling stringtokenizer , getting weird conversion... forget fact should delimiting \ in "\7767546" i'm curious what's \11 until \77 in java

here code:

string path = "c:\\temp\\\\7800000\7767546.pdf"; string delimeter = "\\"; string[] values = new string[3]; int counter = 0; stringtokenizer st = new stringtokenizer(path,delimeter);  while(st.hasmoretokens()){             values[counter] = st.nexttoken();            system.out.println(" values[counter]" + values[counter]);             ++counter; }  

here's output:

values[counter]c:  values[counter]temp  values[counter]7800000?67546.pdf 

if notice, \77 in original string became ? .....is unicode thing?

as java language specification states

octalescape:     \ octaldigit     \ octaldigit octaldigit     \ zerotothree octaldigit octaldigit  octaldigit: 1 of     0 1 2 3 4 5 6 7  zerotothree: 1 of     0 1 2 3 

the following string or character literal octal escape

\77 

in octal, value 77 63 ? character.

note has nothing stringtokenizer. applies string literal

"c:\\temp\\\\7800000\7767546.pdf" 

which, if printed out, print as

c:\temp\\7800000?67546.pdf 

because value stored.