Java-在输入时更改system.out.format的字符串标志

Question

I'm trying to set the flag of the

System.out.format("%s", string);

so the s has variable allocated size associated with it.

For example: I want

System.out.format("%MyVars", string);

Where MyVar would be a variable dependent on the size of a particular list in the program

Where as of now I can only have static numbers like:

System.out.format("%5s", string);

How would I do this?

Answer 1

Why don't you use string concatenation to achieve your desired format?

Below code snippet my help:-

int num = 5;
System.out.format("%" + num + "." + string.length() + "S", string);

Answer 2

You can do this using the below snippet:

String string = "abc";
int size =5;
System.out.format("%d%s", size, string);