Sub string from StringBuilder

CharSequence subSequence(int start, int end)

Returns a new character sequence that is a subsequence of this sequence.

String substring(int start)

Returns a new String that contains a subsequence of characters currently contained in this character sequence.

String substring(int start, int end)

Returns a new String that contains a subsequence of characters currently contained in this sequence.

public class Main {
  public static void main(String[] argv) {
    StringBuilder sb = new StringBuilder();
    sb.append("java2s.com");

    System.out.println(sb.substring(3));
  }
}

The output:

a2s.com

1. StringBuilder
2. StringBuilder Constructor
3. append(char c)
4. StringBuilder capacity()
5. charAt()
6. delete(int start, int end)
7. deleteCharAt
8. StringBuilder length()
9. StringBuilder reverse()
10. setCharAt
11. Sub string from StringBuilder
12. toString():Convert StringBuilder to String