public Builder setEmails(int index, java.lang.String value) {
        if (value == null) {
          throw new NullPointerException();
        }
        ensureEmailsIsMutable();
        emails_.set(index, value);
        bitField0_ |= 0x00000001;
        onChanged();
        return this;
      }
<pre>
Use this field to specify email address(es) to which resumes or
applications can be sent.

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

<code>repeated string emails = 1;</code>

@param index The index to set the value at.
@param value The emails to set.
@return This builder for chaining.
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/Job.java