public void setAlarmName(String alarmName) {
        this.alarmName = alarmName;
    }
<p>
The name for the alarm. This name must be unique within the Region.
</p>
<p>
The name must contain only UTF-8 characters, and can't contain ASCII control characters
</p>

@param alarmName
       The name for the alarm. This name must be unique within the Region.</p>
       <p>
       The name must contain only UTF-8 characters, and can't contain ASCII control characters
aws-java-sdk-cloudwatch/src/main/java/com/amazonaws/services/cloudwatch/model/PutMetricAlarmRequest.java