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| <h1>Java builder</h1> |
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| <p>The Java builder builds Java programs using a compiler that implements the Java Language Specification. |
| The Java builder can build programs incrementally as individual Java files are saved.</p> |
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| <p>Problems detected by the compiler are classified as either warnings or errors. The existence of a warning does not affect the execution of the program; the code executes as |
| if it were written correctly. Compile-time errors (as specified by the Java Language Specification) are always reported as errors by the Java compiler. For some other types of |
| problems you can, however, specify if you want the Java compiler to report them as warnings, errors or to ignore them. To change the default settings, use the |
| <a class="command-link" href='javascript:executeCommand("org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.jdt.ui.preferences.ProblemSeveritiesPreferencePage)")'> |
| <img src="PLUGINS_ROOT/org.eclipse.help/command_link.png" alt="Goto the Java compiler preference page"> |
| <span class="control">Java > Compiler > Errors/Warnings</span></a> |
| preference page.</p> |
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| <p>The Java compiler can create CLASS files even in presence of compilation errors. However, in the case of serious errors (for example, references to inconsistent binaries, |
| most likely related to an invalid build path), the Java builder does not produce any CLASS |
| files.</p> |
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| <p><img border="0" src="../images/ngrelc.png" alt="Related concepts" ></p> |
| <p> |
| <a href="cbuildcp.htm">Build classpath</a><br></p> |
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| <p><img src="../images/ngrelr.png" alt="Related reference" border="0" ></p> |
| <p> |
| <a href="../reference/ref-123.htm">Java Build Path properties</a><br> |
| <a href="../reference/ref-preferences-compiler.htm">Java Compiler preferences</a></p> |
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