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18 | <html> |
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19 | <head> |
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20 | <title>JSP 2.0 Expression Language - Basic Comparisons</title> |
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21 | </head> |
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22 | <body> |
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23 | <h1>JSP 2.0 Expression Language - Basic Comparisons</h1> |
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24 | <hr> |
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25 | This example illustrates basic Expression Language comparisons. |
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26 | The following comparison operators are supported: |
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27 | <ul> |
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28 | <li>Less-than (&lt; or lt)</li> |
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29 | <li>Greater-than (&gt; or gt)</li> |
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30 | <li>Less-than-or-equal (&lt;= or le)</li> |
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31 | <li>Greater-than-or-equal (&gt;= or ge)</li> |
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32 | <li>Equal (== or eq)</li> |
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33 | <li>Not Equal (!= or ne)</li> |
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34 | </ul> |
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35 | <blockquote> |
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36 | <u><b>Numeric</b></u> |
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37 | <code> |
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38 | <table border="1"> |
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39 | <thead> |
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40 | <td><b>EL Expression</b></td> |
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41 | <td><b>Result</b></td> |
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42 | </thead> |
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43 | <tr> |
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44 | <td>\${1 &lt; 2}</td> |
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45 | <td>${1 < 2}</td> |
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46 | </tr> |
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47 | <tr> |
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48 | <td>\${1 lt 2}</td> |
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49 | <td>${1 lt 2}</td> |
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50 | </tr> |
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51 | <tr> |
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52 | <td>\${1 &gt; (4/2)}</td> |
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53 | <td>${1 > (4/2)}</td> |
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54 | </tr> |
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55 | <tr> |
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56 | <td>\${1 &gt; (4/2)}</td> |
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57 | <td>${1 > (4/2)}</td> |
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58 | </tr> |
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59 | <tr> |
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60 | <td>\${4.0 &gt;= 3}</td> |
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61 | <td>${4.0 >= 3}</td> |
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62 | </tr> |
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63 | <tr> |
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64 | <td>\${4.0 ge 3}</td> |
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65 | <td>${4.0 ge 3}</td> |
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66 | </tr> |
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67 | <tr> |
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68 | <td>\${4 &lt;= 3}</td> |
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69 | <td>${4 <= 3}</td> |
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70 | </tr> |
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71 | <tr> |
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72 | <td>\${4 le 3}</td> |
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73 | <td>${4 le 3}</td> |
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74 | </tr> |
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75 | <tr> |
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76 | <td>\${100.0 == 100}</td> |
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77 | <td>${100.0 == 100}</td> |
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78 | </tr> |
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79 | <tr> |
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80 | <td>\${100.0 eq 100}</td> |
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81 | <td>${100.0 eq 100}</td> |
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82 | </tr> |
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83 | <tr> |
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84 | <td>\${(10*10) != 100}</td> |
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85 | <td>${(10*10) != 100}</td> |
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86 | </tr> |
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87 | <tr> |
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88 | <td>\${(10*10) ne 100}</td> |
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89 | <td>${(10*10) ne 100}</td> |
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90 | </tr> |
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91 | </table> |
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92 | </code> |
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93 | <br> |
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94 | <u><b>Alphabetic</b></u> |
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95 | <code> |
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96 | <table border="1"> |
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97 | <thead> |
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98 | <td><b>EL Expression</b></td> |
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99 | <td><b>Result</b></td> |
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100 | </thead> |
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101 | <tr> |
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102 | <td>\${'a' &lt; 'b'}</td> |
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103 | <td>${'a' < 'b'}</td> |
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104 | </tr> |
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105 | <tr> |
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106 | <td>\${'hip' &gt; 'hit'}</td> |
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107 | <td>${'hip' > 'hit'}</td> |
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108 | </tr> |
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109 | <tr> |
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110 | <td>\${'4' &gt; 3}</td> |
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111 | <td>${'4' > 3}</td> |
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112 | </tr> |
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113 | </table> |
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114 | </code> |
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115 | </blockquote> |
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116 | </body> |
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117 | </html> |
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118 | </pre></body></html> |
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