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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"><html><head><title>VM Spec </title></head><body BGCOLOR=#eeeeff text=#000000 LINK=#0000ff VLINK=#000077 ALINK=#ff0000><table width=100%><tr><td><a href="VMSpecTOC.doc.html">Contents</a> | <a href="VMSpecIX.fm5.html">Prev</a> | <a href="VMSpecIX.fm7.html">Next</a> | <a href="VMSpecIX.fm.html">Index</a></td><td align=right><i><i>The Java<sup><font size=-2>TM</font></sup> Virtual Machine Specification</i></i></td></tr></table><hr><br> <a href="VMSpecIX.fm.html">symbols</a><a href="VMSpecIX.fm1.html">A</a><a href="VMSpecIX.fm2.html">B</a><a href="VMSpecIX.fm3.html">C</a><a href="VMSpecIX.fm4.html">D</a><a href="VMSpecIX.fm5.html">E</a><a href="VMSpecIX.fm6.html">F</a><a href="VMSpecIX.fm7.html">G</a><a href="VMSpecIX.fm8.html">H</a><a href="VMSpecIX.fm9.html">I</a><a href="VMSpecIX.fm10.html">J</a><a href="VMSpecIX.fm11.html">L</a><a href="VMSpecIX.fm12.html">M</a><a href="VMSpecIX.fm13.html">N</a><a href="VMSpecIX.fm14.html">O</a><a href="VMSpecIX.fm15.html">P</a><a href="VMSpecIX.fm16.html">Q</a><a href="VMSpecIX.fm17.html">R</a><a href="VMSpecIX.fm18.html">S</a><a href="VMSpecIX.fm19.html">T</a><a href="VMSpecIX.fm20.html">U</a><a href="VMSpecIX.fm21.html">V</a><a href="VMSpecIX.fm22.html">W</a><a href="VMSpecIX.fm23.html">Z</a><hr><a name="6957877"></a><center><h1> F</h1></center><dl><dt><b><strong>F character</strong></b><dl><a name="6957880"></a><dt><a href="ClassFile.doc.html#84673">meaning in field or method descriptor, 101</a></dl><dt><b>f2d <strong>instruction</strong></b><dl><a name="6957883"></a><dt><a href="Instructions2.doc4.html#f2d">definition, 225</a></dl><dt><b>f2i <strong>instruction</strong></b><dl><a name="6957886"></a><dt><a href="Instructions2.doc4.html#f2i">definition, 226</a></dl><dt><b>f2l <strong>instruction</strong></b><dl><a name="6957889"></a><dt><a href="Instructions2.doc4.html#f2l">definition, 227</a></dl><dt><b>fadd <strong>instruction</strong></b><dl><a name="6957892"></a><dt><a href="Instructions2.doc4.html#fadd">definition, 228</a></dl><dt><b>faload <strong>instruction</strong></b><dl><a name="6957895"></a><dt><a href="Instructions2.doc4.html#faload">definition, 230</a></dl><dt><b>fastore <strong>instruction</strong></b><dl><a name="6957898"></a><dt><a href="Instructions2.doc4.html#fastore">definition, 231</a></dl><dt><b>fcmp<op> <strong>instructions</strong></b><dl><a name="6957901"></a><dt><a href="Instructions2.doc4.html#fcmpop">definition, 232</a></dl><dt><b>fconst_<f> <strong>instructions</strong></b><dl><a name="6957904"></a><dt><a href="Instructions2.doc4.html#fconst_f">definition, 234</a></dl><dt><b>fdiv <strong>instruction</strong></b><dl><a name="6957907"></a><dt><a href="Instructions2.doc4.html#fdiv">definition, 235</a></dl><dt><b><strong>fields</strong></b><dl><a name="6957910"></a><dt><em>See also</em> constants; data types; fields table; methods; variables<a name="6957912"></a><dt><a href="Concepts.doc.html#28883">access expressions, access control and, 26</a><a name="6957914"></a><dt>class, field_info<a href="ClassFile.doc.html#87652"> structure access flags, 112</a><a name="6957916"></a><dt><a href="Concepts.doc.html#24222">constant, 52</a><a name="6957918"></a><dt><a href="ClassFile.doc.html#9766">constant pool references, verification process, 141</a><a name="6957920"></a><dt><a href="Concepts.doc.html#16436">constants, as interface members, 35</a><a name="6957922"></a><dt><a href="Overview.doc.html#16535">creation and manipulation, instruction summary, 88</a><a name="6957924"></a><dt><a href="Concepts.doc.html#26290">definition, 29</a><a name="6957926"></a><dt><a href="ConstantPool.doc.html#73300">derivation of symbolic references to at run time, 156</a><a name="6957928"></a><dt>descriptor<dl><a name="6957929"></a><dt><a href="ClassFile.doc.html#7028">syntax and meaning, 100</a><a name="6957931"></a><dt>as value of CONSTANT_Utf8_info structure referred by descriptor_index item, CONSTANT_NameAndType_info<a href="ClassFile.doc.html#9390"> structure, 110</a></dl><a name="6957933"></a><dt>get from class instances, getfield<a href="Instructions2.doc5.html#getfield">, 248</a><a name="6957935"></a><dt><a href="Concepts.doc.html#16320">initialization of, 31</a><a name="6957937"></a><dt>interface, field_info<a href="ClassFile.doc.html#87652"> structure access flags, 112</a><a name="6957939"></a><dt>length<a href="Concepts.doc.html#26079"> as array type member, 26</a><a name="6957941"></a><dt><a href="ConstantPool.doc.html#71685">lookup, 167</a><a name="6957943"></a><dt><a href="Concepts.doc.html#29882">modifiers, 30</a><a name="6957945"></a><dt><a href="ClassFile.doc.html#16521">number limitation, 152</a><a name="6957947"></a><dt>protected<a href="ClassFile.doc.html#10737"> structural constraints, 138</a><a name="6957949"></a><dt>put into class instances, putfield<a href="Instructions2.doc11.html#putfield">, 348</a><a name="6957951"></a><dt><a href="ConstantPool.doc.html#71685">references, resolution, 167</a><a name="6957953"></a><dt><a href="ConstantPool.doc.html#71685">resolution, 167</a><a name="6957955"></a><dt>static<dl><a name="6957956"></a><dt>get from classes, getstatic<a href="Instructions2.doc5.html#getstatic">, 250</a><a name="6957958"></a><dt>put into classes, putstatic<a href="Instructions2.doc11.html#putstatic">, 350</a></dl><a name="6957960"></a><dt><a href="ClassFile.doc.html#16252">types, 101</a></dl><dt><b>fields <strong>table</strong></b><dl><a name="6957963"></a><dt>(ClassFile<a href="ClassFile.doc.html#19655"> structure), 98</a></dl><dt><b>fields_count <strong>item</strong></b><dl><a name="6957966"></a><dt>(ClassFile<a href="ClassFile.doc.html#23377"> structure), 97</a></dl><dt><b>final <strong>modifier</strong></b><dl><a name="6957969"></a><dt><em>See also</em> ACC_FINAL flag<a name="6957971"></a><dt>class<dl><a name="6957972"></a><dt><a href="Concepts.doc.html#20342">definition, 28</a><a name="6957974"></a><dt><a href="ClassFile.doc.html#9772">enforcement, 141</a>, <a href="Instructions2.doc6.html#invokevirtual">291</a></dl><a name="6957977"></a><dt>field<dl><a name="6957978"></a><dt><a href="Concepts.doc.html#29863">definition, 30</a><a name="6957980"></a><dt>enforcement, putfield<a href="Instructions2.doc11.html#putfield">, 348</a><a name="6957982"></a><dt>enforcement, putstatic<a href="Instructions2.doc11.html#putstatic">, 350</a></dl><a name="6957984"></a><dt>method<dl><a name="6957985"></a><dt><a href="Concepts.doc.html#16359">definition, 33</a><a name="6957987"></a><dt><a href="ClassFile.doc.html#9772">enforcement, 141</a></dl></dl><dt><b><strong>finalization</strong></b><dl><a name="6957990"></a><dt>of class instances, finalize<a href="Concepts.doc.html#19147"> method, 56</a></dl><dt><b>finally <strong>clause</strong></b><dl><a name="6957993"></a><dt>data-flow analysis during class<a href="ClassFile.doc.html#9886"> file verification, 151</a><a name="6957995"></a><dt><a href="Concepts.doc.html#24724">exception handling role, 42</a><a name="6957997"></a><dt>implementation of<dl><a name="6957998"></a><dt>in catch_type item (Code_attribute<a href="ClassFile.doc.html#1586"> structure), 122</a><a name="6958000"></a><dt><a href="Overview.doc.html#16207">instruction summary, 90</a></dl><a name="6958002"></a><dt>try-finally<a href="ClassFile.doc.html#9867"> clause, Sun's Java compiler output characteristics, 149</a><a name="6958004"></a><dt><a href="ClassFile.doc.html#22722">uninitialized object restrictions, Pass 3 - bytecode verifier, 148</a></dl><dt><b>findSystemClass <strong>method</strong></b><dl><a name="6958007"></a><dt>ClassLoader<a href="ConstantPool.doc.html#79453"> class, loading of classes and interfaces by, 161</a></dl><dt><b>fload <strong>instruction</strong></b><dl><a name="6958010"></a><dt><em>See also </em>wide instruction<a name="6958012"></a><dt><a href="ClassFile.doc.html#42871">constraints, static, 136</a><a name="6958014"></a><dt><a href="Instructions2.doc4.html#fload">definition, 237</a></dl><dt><b>fload_<n> <strong>instructions</strong></b><dl><a name="6958017"></a><dt><a href="ClassFile.doc.html#42756">constraints, static, 136</a><a name="6958019"></a><dt><a href="Instructions2.doc4.html#fload_n">definition, 238</a></dl><dt><b>float <strong>type</strong></b><dl><a name="6958022"></a><dt><em>See also</em> floating-point<a name="6958024"></a><dt>adding, fadd<a href="Instructions2.doc4.html#fadd">, 228</a><a name="6958026"></a><dt>comparing, fcmp<op><a href="Instructions2.doc4.html#fcmpop">, 233</a><a name="6958028"></a><dt>converting<dl><a name="6958029"></a><dt>double to, d2f<a href="Instructions2.doc3.html#d2f">, 195</a><a name="6958031"></a><dt>int to, i2f<a href="Instructions2.doc6.html#i2f">, 257</a><a name="6958033"></a><dt>long to, l2f<a href="Instructions2.doc8.html#l2f">, 307</a><a name="6958035"></a><dt>to double, f2d<a href="Instructions2.doc4.html#f2d">, 225</a><a name="6958037"></a><dt>to int, f2i<a href="Instructions2.doc4.html#f2i">, 226</a><a name="6962177"></a><a name="6958039"></a><dt>to long, f2l<a href="Instructions2.doc4.html#f2l">, 227</a></dl><a name="6958041"></a><dt>dividing, fdiv<a href="Instructions2.doc4.html#fdiv">, 235</a><a name="6958043"></a><dt><a href="Overview.doc.html#33963">float value set, 63</a><a name="6958045"></a><dt><a href="Overview.doc.html#33963">float-extended-exponent value set, 64</a><a name="6958047"></a><dt>loading from<dl><a name="6958048"></a><dt>arrays, faload<a href="Instructions2.doc4.html#faload">, 230</a><a name="6958050"></a><dt>local variables, fload<a href="Instructions2.doc4.html#fload">, 237</a><a name="6958052"></a><dt>local variables, fload_<n><a href="Instructions2.doc4.html#fload_n">, 238</a></dl><a name="6958054"></a><dt>multiplying, fmul<a href="Instructions2.doc4.html#fmul">, 239</a><a name="6958056"></a><dt>negating, fneg<a href="Instructions2.doc4.html#fneg">, 241</a><a name="6958058"></a><dt>pushing constants, fconst_<f><a href="Instructions2.doc4.html#fconst_f">, 234</a><a name="6958060"></a><dt>remainder, frem<a href="Instructions2.doc4.html#frem">, 242</a><a name="6958062"></a><dt><a href="ClassFile.doc.html#22609">representation in constant pool, 107</a><a name="6958064"></a><dt>returning from method invocation, freturn<a href="Instructions2.doc4.html#freturn">, 244</a><a name="6958066"></a><dt>storing into<dl><a name="6958067"></a><dt>arrays, fastore<a href="Instructions2.doc4.html#fastore">, 231</a><a name="6958069"></a><dt>local variables, fstore<a href="Instructions2.doc4.html#fstore">, 245</a><a name="6958071"></a><dt>local variables, fstore_<n><a href="Instructions2.doc4.html#fstore_n">, 246</a></dl><a name="6958073"></a><dt>subtracting, fsub<a href="Instructions2.doc4.html#fsub">, 247</a></dl><dt><b><strong>float value set</strong></b><dl><a name="6958076"></a><dt><a href="Overview.doc.html#33963">definition, 63</a><a name="6958078"></a><dt><a href="Overview.doc.html#34123">parameters (table), 64</a></dl><dt><b><strong>float-extended-exponent value set</strong></b><dl><a name="6958081"></a><dt><a href="Overview.doc.html#33963">definition, 64</a><a name="6958083"></a><dt><a href="Overview.doc.html#34123">parameters (table), 64</a></dl><dt><b><strong>floating-point</strong></b><dl><a name="6958086"></a><dt><a href="Overview.doc.html#32045">comparison, IEEE 754 conformance, 85</a>, <a href="Overview.doc.html#31288">89</a><a name="6958089"></a><dt>types<dl><a name="6958090"></a><dt><a href="Concepts.doc.html#19367">components, and values, 7</a>, <a href="Overview.doc.html#11786">63</a><a name="6958093"></a><dt><a href="Overview.doc.html#16827">underflow and overflow, Java virtual machine handling, 85</a></dl></dl><dt><b>fmul <strong>instruction</strong></b><dl><a name="6958096"></a><dt><a href="Instructions2.doc4.html#fmul">definition, 239</a></dl><dt><b>fneg <strong>instruction</strong></b><dl><a name="6958099"></a><dt><a href="Instructions2.doc4.html#fneg">definition, 241</a></dl><dt><b>for <strong>keyword</strong></b><dl><a name="6958102"></a><dt><a href="Compiling.doc.html#15070">compilation examples, 365</a></dl><dt><b><strong>forward slashes (/)</strong></b><dl><a name="6958105"></a><dt><a href="ClassFile.doc.html#14922">in class and interface names in internal form, 99</a></dl><dt><b><strong>FP-strict floating point mode</strong></b><dl><a name="6958108"></a><dt><a href="Overview.doc.html#31078">definition, 76</a></dl><dt><b><strong>frames</strong></b><dl><a name="6958111"></a><dt><em>See also</em> stacks<a name="6958113"></a><dt><a href="Overview.doc.html#1962">definition, 71</a><a name="6958115"></a><dt><a href="Overview.doc.html#25058">exception handling impact on, 79</a><a name="6958117"></a><dt><a href="Overview.doc.html#15722">local variables, 72</a></dl><dt><b>frem <strong>instruction</strong></b><dl><a name="6958120"></a><dt><a href="Instructions2.doc4.html#frem">definition, 242</a></dl><dt><b>freturn <strong>instruction</strong></b><dl><a name="6958123"></a><dt><a href="ClassFile.doc.html#28538">constraints, structural, 138</a><a name="6958125"></a><dt><a href="Instructions2.doc4.html#freturn">definition, 244</a></dl><dt><b>fstore <strong>instruction</strong></b><dl><a name="6958128"></a><dt><a href="ClassFile.doc.html#42871">constraints, static, 136</a><a name="6958130"></a><dt><a href="Instructions2.doc4.html#fstore">definition, 245</a></dl><dt><b>fstore_<n> <strong>instructions</strong></b><dl><a name="6958133"></a><dt><a href="ClassFile.doc.html#42756">constraints, static, 136</a><a name="6958135"></a><dt><a href="Instructions2.doc4.html#fstore_n">definition, 246</a></dl><dt><b>fsub <strong>instruction</strong></b><dl><a name="6958138"></a><dt><a href="Instructions2.doc4.html#fsub">definition, 247</a></dl></dl><hr><!-- This inserts footnotes--><p><a href="VMSpecTOC.doc.html">Contents</a> | <a href="VMSpecIX.fm5.html">Prev</a> | <a href="VMSpecIX.fm7.html">Next</a> | <a href="VMSpecIX.fm.html">Index</a><p><font size="-1"><i>The Java</i><sup><font size=-2>TM</font></sup><i> Virtual Machine Specification </i><br><!-- HTML generated by Suzette Pelouch on April 06, 1999 --><i><a href="Copyright.doc.html">Copyright © 1999 Sun Microsystems, Inc.</a>All rights reserved</i><br>Please send any comments or corrections to <a href="mailto:jvm@java.sun.com">jvm@java.sun.com</a></font></body></html>⌨️ 快捷键说明
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