Solved
creating the dropdown text and value returned from the servlet
I have created one servlet which runs whenever we select the dropdown and then it printwrite the key and value that should the dropdown text and value
function callToServlet(txt){
$.ajax({
type:'GET',
data: {
country : txt //let it be India
},
url: '/bin/residential/country-dropdown',
success: function(txt) {
console.log('success');
console.log(txt); //This is printing Key=Up, Value="Lucknow",etc
}
})
}
Not I have to make it a drop down from the txt