Method main

test/StringBuilderTest.java:5–9

(String[] args)

  private static final int iterations = 1000;
    
  public static void main(String[] args) {
    verifyAppendStrLength();
    verifyAppendCharLength();
    verifySubstring();
  }
  
  private static void verify(String srcStr, int iterations, String result) {
    int expectedLength = srcStr.length() * iterations;