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<title> Identifying problems in your code </title>
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<h1> Identifying problems in your code </h1>
<p> In this section, you will review the different indicators for identifying 
  problems in your code. </p>
<p>Build problems are displayed in the  Problems view and annotated in the vertical
ruler of your source code. </p>
<ol>
  <li> Open <em>junit.framework/TestCase.java</em> in the editor from the 
    Package Explorer view. </li>
  <li> Add a syntax error by deleting the semicolon at the end of the package
    declaration in the source code. 
    <p> <img src="images/editor_testcase_error_unsaved.png"  alt="Editor with missing semicolon"> 
    </p>
  </li>
  <li> Click the <strong>Save</strong> button. The project is rebuilt
    and the problem is indicated in several ways: 
    <ul>
      <li> In the  Problems view, the problems are listed, </li>
      <li> In the Package Explorer view, the Type Hierarchy or the Outline view, 
        problem ticks appear on the affected Java elements and their parent elements, 
      </li>
      <li> In the editor's vertical ruler, a problem marker is displayed near the affected line, 
      </li>
      <li> Squiggly lines appear under the word which might have caused the error, and</li>
      <li> The editor tab is annotated with a problem marker. </li>
    </ul>
    <p><img src="images/workbench_testcase_errors.png"  alt="Problem marker in Package Explorer, editor and Tasks view"> 
    </p>
  </li>
  <li> You can hover over the marked word in the editor to view a description 
    of the problem. You can also hover over the problem markers in the vertical or overview rulers. 
    <p> <img src="images/editor_testcase_error_hover.png"  alt="Problem marker hover"> 
    </p>
  </li>
  <li> Click the <strong>Close</strong> (&quot;X&quot;) button on the editor's tab to 
    close the editor. </li>
  <li> In the  Problems view, select a problem in the list. Open its context menu 
    and select <strong>Go To</strong>. The file is opened in the editor at the location of the 
    problem. 
    <p> <img src="images/view_problems_goto.png"  alt="Problems view"> 
    </p>
  </li>
  <li> Correct the problem in the editor by adding the semicolon. Click 
    the <strong>Save</strong> button. The project is rebuilt and the problem indicators disappear. </li>
  <li> In the Outline view, select the method <em>getName()</em>. The editor will 
    scroll to this method. </li>
  <li> On the first line of the method change the returned variable <code>fName</code> 
    to <code>fTestName</code>. While you type, a problem highlight underline appears 
    on fTestName, to indicate a problem. Hovering over the highlighted problem 
    will display a description of the problem and applicable quick fixes.</li>
  <li> On the marker bar a light bulb marker appears. The light bulb signals that 
    correction proposals are available for this problem. 
    <p> <img src="images/editor_testcase_error_getname.png"  alt="Light bulb and problem highlight line"> 
    </p>
  </li>
  <li> Click to place the cursor onto the highlighted error, and choose <strong>Quick Fix</strong> 
    from the Edit menu bar. You can also press <kbd>Ctrl+1</kbd> or left click the light 
    bulb. A selection dialog appears with possible corrections. 
    <p> <img src="images/editor_testcase_error_getname_quickfix.png"  alt="Correction proposals"> 
    </p>
  </li>
  <li> Select 'Change to fName' to fix the problem. The problem highlight 
    line will disappear as the correction is applied. </li>
  <li> Close the file without saving. </li>
  <li> You can configure how problems are indicated on the
  <a class="command-link" href='javascript:executeCommand("org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.ui.editors.preferencePages.Annotations)")'>
  <img src="PLUGINS_ROOT/org.eclipse.help/command_link.png" alt="Goto the annotations preference page">
  <strong>General &gt; Editors &gt; Text Editors &gt; Annotations</strong></a>
  preference page.</li>
</ol>
<P class="nav_footer" id="nav_footer">Next Section: <A href="qs-EditorTemplates.htm">Using code templates</A>
</P>

<img src="../images/ngrelc.png"  alt="Related concepts" border="0"> 
<p> <a href="../concepts/concept-java-editor.htm">Java editor</a><br>
  <a href="../concepts/concept-java-views.htm">Java views</a><br>
  <a href="../concepts/concept-java-builder.htm">Java builder</a> </p>

<p> <img src="../images/ngrelr.png"  alt="Related reference" border="0"> 
</p>
<p> <a href="../reference/preferences/java/ref-preferences-editor.htm">Editor preference page</a><br>
  <a href="../reference/ref-java-editor-quickfix.htm">Quick fix</a> </p>

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