code: package com.puppycrawl.tools.checkstyle.utils.checkutil;
  import java.util.HashMap;
  import java.util.Map;
  
  import com.google.common.base.Objects;
  
  /**
   * It is class.
   * @param <V> ssss
   * @param <C> dddd
   */
  public class InputCheckUtilTest<V, C> {
      private Map<String, Integer> field = new HashMap<>();
      protected int[] array = new int[10];
      public static final Long VAR_1 = 1L;
      static final double VAR_2 = 5.0;
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          InputCheckUtilTest<V, C> that = (InputCheckUtilTest<V, C>) o;
          return Objects.equal(field, that.field) &&
                  Objects.equal(array, that.array);
      }
  
      public void doSomething(int value) {
          if (field.isEmpty()) {
              field.put(String.valueOf(value), value << 1);
          } else {
              if(!field.containsKey(String.valueOf(value))){
                  field.put(String.valueOf(value), value << 1);
              }
          }
  
          if(!field.containsKey(String.valueOf(value))){
              field.put(String.valueOf(value), value << 1);
          } else if (value == 10) {
              array[9] = -1;
          }
  
          if(field.size() < 10){
              array[9] = field.getOrDefault(String.valueOf(value), -1);
          }
  
      }
  
      public Map<String, Integer> getField() {
          return new HashMap<>(field);
      }
  
      public void setField(Map<String, Integer> field) {
          this.field = field;
      }
  
      public int [] setArray(int... array) {
          this.array = array;
          if(array.length > 0){
              return this.array;
          } else {
              return new int[4];
          }
      }
  
      public void testReceiver(InputCheckUtilTest<V, C>this, int variable) {}
  
      public interface Example {
          void method();
      }
  }
  