OpenJDK: Difference between revisions
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== Usage == |
== Usage == |
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OpenJDK is a set of command-line tools. |
OpenJDK is a set of command-line tools. |
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If OpenJDK is installed in < |
If OpenJDK is installed in <kbd>/usr/local/jdk-1.7.0</kbd>, then <kbd>/usr/local/jdk-1.7.0/bin</kbd> needs to be added to the <kbd>PATH</kbd> environment variable. |
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The two most important tools are the [[javac]] compiler, and the java runner. |
The two most important tools are the [[javac]] compiler, and the java runner. |
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This example program would compute 12 - 4. |
This example program would compute 12 - 4. |
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<syntaxhighlight lang="java"> |
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/* TwelveMinusFour.java */ |
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public class TwelveMinusFour { |
public class TwelveMinusFour { |
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public static void main(String[] args) { |
public static void main(String[] args) { |
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System.out.println(12 - 4); |
System.out.println(12 - 4); |
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} |
} |
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} |
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}</lang> |
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</syntaxhighlight> |
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One can compile this program with javac, and run it with java. |
One can compile this program with <kbd>javac</kbd>, and run it with <kbd>java</kbd>. |
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<syntaxhighlight lang="bash"> |
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<lang bash>$ javac TwelveMinusFour.java |
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$ |
$ javac TwelveMinusFour.java |
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$ java TwelveMinusFour |
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8</lang> |
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8 |
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</syntaxhighlight> |
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== References == |
== References == |
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