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How to use the JSP if Else statement

Source: Internet
Author: User
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If else is used in most programming languages, let's briefly talk about if else and multiple condition judgments in the JSP tutorial today.

<HTML>
<HEAD>
<title>using the If statement</title>
</HEAD>

<BODY>
<%
int value = 10;

if (Value > 0)
OUT.PRINTLN ("absolute value of" + value + "=" + value);
%>
</BODY>
</HTML>
Simple contrast

<HTML>
<HEAD>
<title>using Compound statements</title>
</HEAD>

<BODY>
<%
int value = 10;

if (value > 0) {
Out.println ("The number was positive.");
OUT.PRINTLN ("absolute value of" + value + "=" + value);
}
%>
</BODY>
</HTML>

If Else

<HTML>
<HEAD>
<title>nested if statements</title>
</HEAD>

<BODY>
<%
Double value = 2;

if (value!= 0) {
if (Value > 0)
OUT.PRINTLN ("The result =" + (1/value));
Else
Out.println ("Sorry, we need a positive number.");
}
%>
</BODY>
</HTML>
Multiple conditions if Else

<HTML>
<HEAD>
<title>using an if-else ladder</title>
</HEAD>

  <body>
        < %
        String day = "Friday";

        if (day = = "Monday")
             out.println ("It ' s Monday.");
        Else if (day = = "Tuesday")
             out.println ("It ' s Tuesday.");
        Else if (day = = "Wednesday")
             out.println ("It ' s Wednesday.");
        Else if (day = = "Thurssday")
             out.println ("It ' s Thursday.");
        Else if (day = = "Friday")
             out.println ("It ' s Friday.");
        Else if (day = = "Saturday")
      & Nbsp;     out.println ("It ' S http://www.3lian.com/saturday.");
        Else if (day = = "Sunday")
             out.println ("It ' s Sunday.");
   %>
  </BODY>

Above is the three networking for you to introduce the JSP if Else statement use method, I hope to help you.

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Related Keywords:
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