Static counter that increments for every line printed in output?-CodePudding

I have a long output, and I am trying to number the lines printed in the output to make sure all of them are printing correctly. I would just use a regular counter in my method, but I am using recursion to print everything, so it has been hard to get an accurate count of the number of lines being printed. How could I make some sort of static counter that prints before each line is printed to essentially number each line?

CodePudding user response：

You can just create something like CounterHolder and increment it every time you are trying to get value:

public class CounterHolder{

    private static int counter = 0;

    private CounterHolder(){}

    public static int getCounter(){
        return counter  ;
    }

}

UPD:

You can also add custom printing method here:

public class CounterHolder{

    private static int counter = 0;

    private CounterHolder(){}

    public static void print(String msg){
        System.out.println(String.format("%d -> %s", counter  , msg));
    }

}