String currentPath = System.getProperty("user.dir");

		System.out.println(currentPath);
		char[] tempChar = currentPath.toCharArray();
		for(int i = 0; i < tempChar.length; i++) {
			if(tempChar[i] == '\\') {
				tempChar[i] = '/';
			}	
		}
		System.out.println(currentPath);

output:
C:\Documents and Settings\tore-\workspace\Prosjekt
C:\Documents and Settings\tore-\workspace\Prosjekt