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Editorial Team
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Asked: 2026-06-11T20:43:34+00:00

I’m trying to install Java on my Ubuntu 12.04 machine and I’m frustrated, to

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I’m trying to install Java on my Ubuntu 12.04 machine and I’m frustrated, to say the least. I have OpenJDK/JRE 6 and 7 installed, but the following code won’t find the JButton or JFrame classes:

package app;

import java.awt.*;

public class AppInterface {

    private JFrame main;
    private JButton play;
    private JButton exit;

}

I have all of the relevant libraries installed from apt-get. Why’s missing that I don’t have access to Swing libraries?

My compile errors:

`Have no file for /usr/lib/jvm/java-7-openjdk-i386/jre/lib/netx.jar`
`Have no file for /usr/lib/jvm/java-7-openjdk-i386/jre/lib/plugin.jar`
`Have no file for /usr/lib/jvm/java-7-openjdk-i386/jre/lib/jfr.jar`
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1 Answer

  1. Editorial Team

    You should import javax.swing.*; as well.

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