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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.fm13.html">Prev</a> | <a href="VMSpecIX.fm15.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="6960115"></a><center><h1> O</h1></center><dl><dt><b>Object<strong> class</strong></b><dl><a name="6960118"></a><dt><a href="Concepts.doc.html#27433">definition, 12</a></dl><dt><b><strong>objects</strong></b><dl><a name="6960121"></a><dt><em>See also</em> array; instances<a name="6960123"></a><dt><a href="Concepts.doc.html#25380">definition, 11</a></dl><dt><b><strong>opcodes</strong></b><dl><a name="6960126"></a><dt><a href="Overview.doc.html#2111">definition, 80</a><a name="6960128"></a><dt><a href="Mnemonics.doc.html#4326">mnemonics by opcode (table), 415</a><a name="6960130"></a><dt><a href="Instructions.doc.html#60106">reserved, 172</a></dl><dt><b><strong>operand stack</strong></b><dl><a name="6964140"></a><dt><a href="Overview.doc.html#28851">allocation, 73</a><a name="6960133"></a><dt><a href="ClassFile.doc.html#11934">code verification, Pass 3 - bytecode verifier, 143</a><a name="6960135"></a><dt><a href="ClassFile.doc.html#9783">data-flow analysis, 142</a><a name="6960137"></a><dt><a href="Overview.doc.html#28851">definition, 73</a><a name="6960139"></a><dt>duplicating value(s)<dl><a name="6960140"></a><dt>dup<a href="Instructions2.doc3.html#dup">, 218</a><a name="6960142"></a><dt>dup_x1<a href="Instructions2.doc3.html#dup_x1">, 219</a><a name="6960144"></a><dt>dup_x2<a href="Instructions2.doc3.html#dup_x2">, 220</a><a name="6960146"></a><dt>dup2<a href="Instructions2.doc3.html#dup2">, 221</a><a name="6960148"></a><dt>dup2_x1<a href="Instructions2.doc3.html#dup2_x1">, 222</a><a name="6960150"></a><dt>dup2_x2<a href="Instructions2.doc3.html#dup2_x2">, 223</a></dl><a name="6960152"></a><dt><a href="Overview.doc.html#31560">frames used to hold, 73</a><a name="6960154"></a><dt><a href="Overview.doc.html#16561">management instruction summary, 88</a><a name="6960156"></a><dt><a href="ClassFile.doc.html#9825">merging, during data-flow analysis, 145</a><a name="6960158"></a><dt>pop value(s)<dl><a name="6960159"></a><dt>pop<a href="Instructions2.doc11.html#pop">, 346</a><a name="6960161"></a><dt>pop2<a href="Instructions2.doc11.html#pop2">, 347</a></dl><a name="6960163"></a><dt><a href="ClassFile.doc.html#36730">size limitation, 152</a><a name="6960165"></a><dt><a href="ClassFile.doc.html#29477">structural constraints on instructions, 137</a><a name="6960167"></a><dt>swap values, swap<a href="Instructions2.doc13.html#swap">, 357</a></dl><dt><b><strong>operand(s)</strong></b><dl><a name="6960170"></a><dt><a href="ClassFile.doc.html#42772">constraints, static, 134</a><a name="6960172"></a><dt><a href="Overview.doc.html#2111">definition, 80</a><a name="6960174"></a><dt><a href="Compiling.doc.html#14767">implicit, compilation advantage of, 366</a><a name="6960176"></a><dt><a href="ClassFile.doc.html#11934">instructions, verification process, 143</a><a name="6960178"></a><dt><a href="Overview.doc.html#25234">Java virtual machine instructions, storage order and alignment, 80</a><a name="6960180"></a><dt><a href="Overview.doc.html#15114">types, how distinguished by Java virtual machine instruction set, 62</a></dl><dt><b><strong>optimization</strong></b><dl><a name="6960183"></a><dt><a href="ClassFile.doc.html#11935">alternative instruction use, 143</a></dl><dt><b><strong>ordered values</strong></b><dl><a name="6960186"></a><dt><a href="Overview.doc.html#34565">NaN values not ordered, implications of, 65</a></dl><dt><b><strong>ORing</strong></b><dl><a name="6960189"></a><dt>int<dl><a name="6960190"></a><dt>bitwise, exclusive, ixor<a href="Instructions2.doc6.html#ixor">, 303</a><a name="6960192"></a><dt>bitwise, inclusive, ior<a href="Instructions2.doc6.html#ior">, 294</a></dl><a name="6960194"></a><dt>long<dl><a name="6960195"></a><dt>bitwise, exclusive, lxor<a href="Instructions2.doc8.html#lxor">, 334</a><a name="6960197"></a><dt>bitwise, inclusive, lor<a href="Instructions2.doc8.html#lor">, 325</a></dl></dl><dt><b>outer_class_info_index <strong>item</strong></b><dl><a name="6960200"></a><dt>(classes array of InnerClasses_attribute<a href="ClassFile.doc.html#80042"> structure), 126</a></dl><dt><b>OutOfMemoryError</b><dl><a name="6960203"></a><dt><a href="Overview.doc.html#23149">heap-related error, 69</a><a name="6960205"></a><dt><a href="Concepts.doc.html#24983">as Java virtual machine error, 45</a><a name="6960207"></a><dt><a href="Overview.doc.html#24522">Java virtual machine stack-related error, 68</a><a name="6960209"></a><dt><a href="Overview.doc.html#22069">method area-related error, 69</a><a name="6960211"></a><dt><a href="Overview.doc.html#23252">native method stack-related error, 71</a><a name="6960213"></a><dt><a href="Overview.doc.html#23220">runtime constant pool-related error, 70</a><a name="6960215"></a><dt><a href="Concepts.doc.html#24272">when thrown during initialization, 54</a></dl><dt><b><strong>overflow</strong></b><dl><a name="6960218"></a><dt><a href="Overview.doc.html#14562">floating-point, Java virtual machine handling, 85</a><a name="6960220"></a><dt><a href="Overview.doc.html#23149">heap, 69</a><a name="6960222"></a><dt><a href="Overview.doc.html#16827">integer data types, not detected by Java virtual machine, 85</a><a name="6960224"></a><dt><a href="Overview.doc.html#21922">Java virtual machine stack, 68</a><a name="6960226"></a><dt><a href="Overview.doc.html#22069">method area, 69</a><a name="6960228"></a><dt><a href="Overview.doc.html#21973">native method stack, 71</a><a name="6960230"></a><dt><a href="Overview.doc.html#23220">runtime constant pool, 70</a></dl><dt><b><strong>overriding</strong></b><dl><a name="6960233"></a><dt>ACC_FINAL flag, method_info<a href="ClassFile.doc.html#75533"> structure prevention of, 115</a><a name="6960235"></a><dt><a href="Concepts.doc.html#26073">definition, 26</a><a name="6960237"></a><dt><a href="Concepts.doc.html#26698">in interfaces, 37</a><a name="6960239"></a><dt><a href="Concepts.doc.html#17564">methods, 31</a></dl></dl><hr><!-- This inserts footnotes--><p><a href="VMSpecTOC.doc.html">Contents</a> | <a href="VMSpecIX.fm13.html">Prev</a> | <a href="VMSpecIX.fm15.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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