By default, there is no boolean button available in Struts tag library .But we can do simple trick to create boolean button easily using struts2 tag library.
Struts Code :
<s:radio list=”#{true:’ ‘}” name=”control_name” />
While submitting,If the user clicked on the radio button, then it would pass “true” value as parameter to back-end. If not ,it would just pass null value that we can consider as “false“.