public Builder setDepartment(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      department_ = value;
      bitField0_ |= 0x00000800;
      onChanged();
      return this;
    }
<pre>
The department or functional area within the company with the open
position.

The maximum number of allowed characters is 255.
</pre>

<code>string department = 12;</code>

@param value The department to set.
@return This builder for chaining.
java-talent/proto-google-cloud-talent-v4beta1/src/main/java/com/google/cloud/talent/v4beta1/Job.java