How to use

hashCode

method

in

java.lang.Long

@Override
public int hashCode() {
  return Long.hashCode(this.suffixLength);
}

@Override
public int hashCode() {
  return Long.hashCode(this.bytes);
}

/**
 * Return the same value as {@link Long#hashCode(long)}}.
 * @deprecated as of Spring Framework 5.0, in favor of the native JDK 8 variant
 */
@Deprecated
public static int hashCode(long lng) {
  return Long.hashCode(lng);
}

/**
 * Return a hash code based on the contents of the specified array.
 * If {@code array} is {@code null}, this method returns 0.
 */
public static int nullSafeHashCode(@Nullable long[] array) {
  if (array == null) {
    return 0;
  }
  int hash = INITIAL_HASH;
  for (long element : array) {
    hash = MULTIPLIER * hash + Long.hashCode(element);
  }
  return hash;
}

@Override
public int hashCode() {
 return i.hashCode();
}

  @Override
  public int hashCode() {
    int result = topic != null ? topic.hashCode() : 0;
    result = 31 * result + (partition != null ? partition.hashCode() : 0);
    result = 31 * result + (headers != null ? headers.hashCode() : 0);
    result = 31 * result + (key != null ? key.hashCode() : 0);
    result = 31 * result + (value != null ? value.hashCode() : 0);
    result = 31 * result + (timestamp != null ? timestamp.hashCode() : 0);
    return result;
  }
}

@Override
public int hashCode(Object value)
{
  try {
    return toIntExact(Long.hashCode((long) hashCodeHandle.invokeExact(value)));
  }
  catch (Throwable t) {
    throwIfInstanceOf(t, Error.class);
    throwIfInstanceOf(t, PrestoException.class);
    throw new PrestoException(GENERIC_INTERNAL_ERROR, t);
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getRoleId() == null) ? 0 : getRoleId().hashCode());
    result = prime * result + ((getName() == null) ? 0 : getName().hashCode());
    result = prime * result + ((getTitle() == null) ? 0 : getTitle().hashCode());
    result = prime * result + ((getDescription() == null) ? 0 : getDescription().hashCode());
    result = prime * result + ((getCtime() == null) ? 0 : getCtime().hashCode());
    result = prime * result + ((getOrders() == null) ? 0 : getOrders().hashCode());
    return result;
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getSystemId() == null) ? 0 : getSystemId().hashCode());
    result = prime * result + ((getName() == null) ? 0 : getName().hashCode());
    result = prime * result + ((getCode() == null) ? 0 : getCode().hashCode());
    result = prime * result + ((getDescription() == null) ? 0 : getDescription().hashCode());
    result = prime * result + ((getCtime() == null) ? 0 : getCtime().hashCode());
    result = prime * result + ((getOrders() == null) ? 0 : getOrders().hashCode());
    return result;
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getTopicId() == null) ? 0 : getTopicId().hashCode());
    result = prime * result + ((getTitle() == null) ? 0 : getTitle().hashCode());
    result = prime * result + ((getDescription() == null) ? 0 : getDescription().hashCode());
    result = prime * result + ((getUrl() == null) ? 0 : getUrl().hashCode());
    result = prime * result + ((getCtime() == null) ? 0 : getCtime().hashCode());
    return result;
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getOrganizationId() == null) ? 0 : getOrganizationId().hashCode());
    result = prime * result + ((getPid() == null) ? 0 : getPid().hashCode());
    result = prime * result + ((getName() == null) ? 0 : getName().hashCode());
    result = prime * result + ((getDescription() == null) ? 0 : getDescription().hashCode());
    result = prime * result + ((getCtime() == null) ? 0 : getCtime().hashCode());
    return result;
  }
}

@Test
@Deprecated
public void hashCodeWithLong() {
  long lng = 883L;
  int expected = (new Long(lng)).hashCode();
  assertEquals(expected, ObjectUtils.hashCode(lng));
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getPayInOrderId() == null) ? 0 : getPayInOrderId().hashCode());
    result = prime * result + ((getPayVendorId() == null) ? 0 : getPayVendorId().hashCode());
    result = prime * result + ((getPayMchId() == null) ? 0 : getPayMchId().hashCode());
    result = prime * result + ((getAmount() == null) ? 0 : getAmount().hashCode());
    result = prime * result + ((getStatus() == null) ? 0 : getStatus().hashCode());
    result = prime * result + ((getCtime() == null) ? 0 : getCtime().hashCode());
    return result;
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getPayOutOrderId() == null) ? 0 : getPayOutOrderId().hashCode());
    result = prime * result + ((getPayMchId() == null) ? 0 : getPayMchId().hashCode());
    result = prime * result + ((getPayVendorId() == null) ? 0 : getPayVendorId().hashCode());
    result = prime * result + ((getAmount() == null) ? 0 : getAmount().hashCode());
    result = prime * result + ((getStatus() == null) ? 0 : getStatus().hashCode());
    result = prime * result + ((getCtime() == null) ? 0 : getCtime().hashCode());
    return result;
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getMenuId() == null) ? 0 : getMenuId().hashCode());
    result = prime * result + ((getPid() == null) ? 0 : getPid().hashCode());
    result = prime * result + ((getName() == null) ? 0 : getName().hashCode());
    result = prime * result + ((getUrl() == null) ? 0 : getUrl().hashCode());
    result = prime * result + ((getTarget() == null) ? 0 : getTarget().hashCode());
    result = prime * result + ((getOrders() == null) ? 0 : getOrders().hashCode());
    return result;
  }
}

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result + ((getPayInOrderDetailId() == null) ? 0 : getPayInOrderDetailId().hashCode());
    result = prime * result + ((getPayInOrderId() == null) ? 0 : getPayInOrderId().hashCode());
    result = prime * result + ((getProductId() == null) ? 0 : getProductId().hashCode());
    result = prime * result + ((getProductName() == null) ? 0 : getProductName().hashCode());
    result = prime * result + ((getProductPrice() == null) ? 0 : getProductPrice().hashCode());
    result = prime * result + ((getProductCount() == null) ? 0 : getProductCount().hashCode());
    result = prime * result + ((getRemark() == null) ? 0 : getRemark().hashCode());
    return result;
  }
}

@Benchmark
public long computePositionWithBitShifting()
{
  return (int) ((Integer.toUnsignedLong(Long.hashCode(hashcode)) * hashTableSize) >> 32);
}

@Benchmark
public long computePositionWithDivision()
{
  return (int) ((Integer.toUnsignedLong(Long.hashCode(hashcode)) * hashTableSize) / (1 << 32));
}

@GwtIncompatible // Long.hashCode returns different values in GWT.
public void testHashCode() {
 for (long value : VALUES) {
  assertEquals("hashCode for " + value, ((Long) value).hashCode(), Longs.hashCode(value));
 }
}

@Test
public void testHashCode() {
  final MutableLong mutNumA = new MutableLong(0);
  final MutableLong mutNumB = new MutableLong(0);
  final MutableLong mutNumC = new MutableLong(1);
  assertTrue(mutNumA.hashCode() == mutNumA.hashCode());
  assertTrue(mutNumA.hashCode() == mutNumB.hashCode());
  assertFalse(mutNumA.hashCode() == mutNumC.hashCode());
  assertTrue(mutNumA.hashCode() == Long.valueOf(0).hashCode());
}