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Editorial Team
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Asked: 2026-06-17T12:28:59+00:00

Is it possible to put swicthcase inside While loop? I’m trying but I cant

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Is it possible to put swicthcase inside While loop? I’m trying but I cant pass the value to another page, it only displays null

<form action="NewFile1.jsp" method="get">
Birthday: <br>
<%! int i = 1, j; 
    String mon = "";%>
<%
    out.println("<select name='month'>");
    while(i <= 12) {
        out.print("<option>" + i + "</option>");
        i++;
    }
    out.print("</select>");



%>  


    <input type="submit" value="submit">
    </form>
</body>

Page to output the selected value in combo box

<body>
<%
//String mo = request.getParameter("month");
String mo = "";
switch(request.getParameter("month")) {
case "1": mo =  "January"; break;

}
%>

<%=out.print("Birthday: " + mo)%>

For example, in the combo box are numbers representing the month respectively. If the user selected 2, it should dislpay “February” on the next page.

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1 Answer

  1. Editorial Team

    Try with int, instead of String:

    <%
    String mo = "";
    int month = Integer.parseInt("0"+request.getParameter("month"));
    switch(month) {
    case 1: mo =  "January"; break;
        ...
    }
%>

<%=mo%>
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