public static String javaQuotedLiteral ( String value ) { StringBuilder b = new StringBuilder ( value . length ( ) * 2 ) ; b . append ( ' ' ) ; for ( int i = 0 ; i < value . length ( ) ; i ++ ) { char c = value . charAt ( i ) ; switch ( c ) { case ' ' : b . append ( "\\\"" ) ; break ; case ' ' : b . append ( "\\\\" ) ; break ; case ' ' : b . append ( "\\n" ) ; break ; case ' ' : b . append ( "\\t" ) ; break ; case ' ' : b . append ( "\\r" ) ; break ; case ' ' : b . append ( "\\000" ) ; break ; // Inserting '\0' isn't safe if there's a digit after default : if ( c >= 0x20 && c <= 0x7e ) { b . append ( c ) ; } else { int h1 = ( c >> 12 ) & 0xf ; int h2 = ( c >> 8 ) & 0xf ; int h3 = ( c >> 4 ) & 0xf ; int h4 = c & 0xf ; b . append ( "\\u" ) ; b . append ( hexDigit ( h1 ) ) ; b . append ( hexDigit ( h2 ) ) ; b . append ( hexDigit ( h3 ) ) ; b . append ( hexDigit ( h4 ) ) ; } break ; } } b . append ( ' ' ) ; return b . toString ( ) ; }
Given a string returns the representation of that string as a Java string literal .