code: package com.puppycrawl.tools.checkstyle.xpathfilegeneratorauditlistener;
  
  public class InputXpathFileGeneratorAuditListener {
  
      private boolean isValid = true;
  
      public String sayHello(String name) {
          return "Hello, " + name;
      }
  
      public int add(int a, int b) {
          return a + b;
      }
  
      public void sort(int a[]) {
          for (int i = 0;i < a.length; i++) {
              for (int j = i+1; j < a.length; j++) {
                  if (a[i] > a[j]) {
                      int buf = a[i];
                      a[i] = a[j];
                      a[j] = buf;
                  }
              }
          }
      }
  }
  