running java on linux server -

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i run jar file extracted java project run on linux server connect through ssh tunneling. there few problems, first there wrong display: error 

no x11 display variable set, program performed operation requires it.     @ java.awt.graphicsenvironment.checkheadless(graphicsenvironment.java:173)     @ java.awt.window.<init>(window.java:437)     @ java.awt.frame.<init>(frame.java:419)     @ java.awt.frame.<init>(frame.java:384)     @ javax.swing.jframe.<init>(jframe.java:174)     @ random_v2.v2frame.<init>(v2frame.java:127)     @ random_v2.wrapper.main(wrapper.java:25)

and second not sure if have install other applications well. in code, java program needs run other applications weka, have install weka same directory name , specs in mac? appreciate in advance. best wishes

assuming you're tunneling unix box using putty:

make sure x11 forwarding enabled in putty settings.

enter image description here


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