Can be used to generate serial numbers
int number = Integer.parseInt(str); number = number+1; // 0 means add 0 in front // 7 means the length is 7 // d represents the parameter is an integer version = "QJX"+String.format("%07d", number);
Can be used to generate serial numbers
int number = Integer.parseInt(str); number = number+1; // 0 means add 0 in front // 7 means the length is 7 // d represents the parameter is an integer version = "QJX"+String.format("%07d", number);