I am new to JSP and am having trouble comparing string with the value in a form field submitted. The following is the code that I am executing through Tomcat and is not giving me the desired result: Code: java Code: <% String myvar = request.getParameter("var1"); boolean first = false; if (myvar == null) { first = true; } else { if (myvar == "compareme") out.println("string matches"); else out.println("string MISMATCH"); } %> <html> <head><title>String compare with Form Input</title></head> <body> <h2>If you enter input as "compareme", I should say "MATCH", else "MISMATCH"</h2> <% if (! first) { %> Input was <%= myvar %> <br> <% } %> <hr> <form>Please enter a string <input name=var1> and <input type=submit></form> </body> </html> You will notice that even though the correct string "compareme" is submitted in the form, the string comparison still fails. I have tried appending .toString() and .trim() to myvar but that has not helped either. I am obviously missing something very basic in JSP. Please help
Ok, posting the code once again for increased legibility: Code: java Code: <% String myvar = request.getParameter("var1"); boolean first = false; if (myvar == null) { first = true; } else { if (myvar == "compareme") out.println("string matches"); else out.println("string MISMATCH"); } %> <html> <head><title>String compare with Form Input</title></head> <body> <h2>If you enter input as "compareme", I should say "MATCH", else "MISMATCH"</h2> <% if (! first) { %> Input was <%= myvar %> <br> <% } %> <hr> <form>Please enter a string <input name=var1> and <input type=submit></form> </body> </html>
