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| 17 | <html> |
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| 18 | <head> |
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| 19 | <title>JSP 2.0 Expression Language - Basic Arithmetic</title> |
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| 20 | </head> |
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| 21 | <body> |
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| 22 | <h1>JSP 2.0 Expression Language - Basic Arithmetic</h1> |
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| 23 | <hr> |
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| 24 | This example illustrates basic Expression Language arithmetic. |
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| 25 | Addition (+), subtraction (-), multiplication (*), division (/ or div), |
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| 26 | and modulus (% or mod) are all supported. Error conditions, like |
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| 27 | division by zero, are handled gracefully. |
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| 28 | <br> |
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| 29 | <blockquote> |
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| 30 | <code> |
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| 31 | <table border="1"> |
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| 32 | <thead> |
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| 33 | <td><b>EL Expression</b></td> |
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| 34 | <td><b>Result</b></td> |
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| 35 | </thead> |
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| 36 | <tr> |
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| 37 | <td>\${1}</td> |
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| 38 | <td>${1}</td> |
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| 39 | </tr> |
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| 40 | <tr> |
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| 41 | <td>\${1 + 2}</td> |
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| 42 | <td>${1 + 2}</td> |
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| 43 | </tr> |
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| 44 | <tr> |
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| 45 | <td>\${1.2 + 2.3}</td> |
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| 46 | <td>${1.2 + 2.3}</td> |
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| 47 | </tr> |
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| 48 | <tr> |
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| 49 | <td>\${1.2E4 + 1.4}</td> |
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| 50 | <td>${1.2E4 + 1.4}</td> |
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| 51 | </tr> |
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| 52 | <tr> |
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| 53 | <td>\${-4 - 2}</td> |
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| 54 | <td>${-4 - 2}</td> |
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| 55 | </tr> |
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| 56 | <tr> |
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| 57 | <td>\${21 * 2}</td> |
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| 58 | <td>${21 * 2}</td> |
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| 59 | </tr> |
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| 60 | <tr> |
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| 61 | <td>\${3/4}</td> |
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| 62 | <td>${3/4}</td> |
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| 63 | </tr> |
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| 64 | <tr> |
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| 65 | <td>\${3 div 4}</td> |
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| 66 | <td>${3 div 4}</td> |
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| 67 | </tr> |
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| 68 | <tr> |
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| 69 | <td>\${3/0}</td> |
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| 70 | <td>${3/0}</td> |
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| 71 | </tr> |
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| 72 | <tr> |
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| 73 | <td>\${10%4}</td> |
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| 74 | <td>${10%4}</td> |
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| 75 | </tr> |
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| 76 | <tr> |
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| 77 | <td>\${10 mod 4}</td> |
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| 78 | <td>${10 mod 4}</td> |
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| 79 | </tr> |
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| 80 | <tr> |
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| 81 | <td>\${(1==2) ? 3 : 4}</td> |
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| 82 | <td>${(1==2) ? 3 : 4}</td> |
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| 83 | </tr> |
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| 84 | </table> |
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| 85 | </code> |
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| 86 | </blockquote> |
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| 87 | </body> |
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| 88 | </html> |
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