Justified a field with Formatter : Formatter « Utility Classes « SCJP

1. SCJP
2. Utility Classes
3. Formatter

import java.util.Formatter;

public class MainClass{
    public static void main(String[] argv){
        StringBuilder sb = new StringBuilder();
        Formatter f = new Formatter(sb);
        int a = 1234;
        int b = 5;
        f.format("a = %7d and b = %-7d!!!", a, b);
        System.out.println(sb);

    }
}

a =    1234 and b = 5      !!!