How to increase whitespace?

[Cylab]

Depends on the size of stack, I need to add whitespace.
stack: [a,b,c,d,]

wanted Ouput:
a
" " b
" "," "c
" "," "," "d

Please help, how can I do it.

Sincerely appreciation for any suggestion.

[JosAH]

Depends on the size of stack, I need to add whitespace.
stack: [a,b,c,d,]

wanted Ouput:
a
" " b
" "," "c
" "," "," "d

Please help, how can I do it.

Sincerely appreciation for any suggestion.

Here's a clue: a next line has one space more than a previous line before the stack element is printed. StringBuilders are ideal for this purpose.

kind regards,

Jos

[Cylab]

The code works to put one more space than a previous line.

import java.util.*;

public class Sbuilder
{
public static void main(String[] args)
{

Stack<String> stack = new Stack<String>();
String[] s ={"a","b","c","d","f"};

StringBuilder st = new StringBuilder();

for(int i=0;i<s.length;i++){

// System.out.print(st.insert(i, " "));
System.out.print(st.append(" ")+stack.push(s[i]));

System.out.println();
}
System.out.println(st);
}
}

However, how about for following result.

wanted Ouput:
a
" " b
" ",c
d
" " b
How it works? Any hint please???????????????????

[Sno]

System.out.println("\t"+stack.push(s[i]));
System.out.printf(" "+stack.push(s[i]));

[JosAH]

System.out.println("\t"+stack.push(s[i]));
System.out.printf(" "+stack.push(s[i]));

Cool, you try that when an s[i] equals "%d" or similar.

kind regards,

Jos