public static void main(String[] args) { int i = 7; System.out.println(String.format("%04d", i)); System.out.println(String.format("%-4s",i).replace(" ", "0")); }
public static void main(String[] args) { int i = 7; System.out.println(String.format("%04d", i)); System.out.println(String.format("%-4s",i).replace(" ", "0")); }