title: How to change the default port number in android studio while running backend code?
body: <p>i need help,
  currently am going to develop an android app, and am using cloud tools(google app engine) using android studio.I have setup the environment correctly  and when i run my backend code..the following error showing.</p>
  
  <blockquote>
    <p>/usr/lib/jvm/java-1.7.0-openjdk-i386/bin/java
    -javaagent:/home/sharma/.gradle/appengine-sdk/appengine-java-sdk-1.9.14/lib/agent/appengine-agent.jar
    -Xbootclasspath/p:/home/sharma/.gradle/appengine-sdk/appengine-java-sdk-1.9.14/lib/override/appengine-dev-jdk-overrides.jar
    -Didea.launcher.port=7532 -Didea.launcher.bin.path=/home/sharma/Desktop/android-studio/bin -Dfile.encoding=UTF-8 -classpath /home/sharma/.gradle/appengine-sdk/appengine-java-sdk-1.9.14/lib/appengine-tools-api.jar:/home/sharma/Desktop/android-studio/lib/idea_rt.jar
    com.intellij.rt.execution.application.AppMain
    com.google.appengine.tools.development.DevAppServerMain
    --address=localhost --port=8080 /home/sharma/AndroidstudioProjects/SampleApp7/ServierSide/build/exploded-app</p>
    
    <p>Feb 06, 2015 6:17:30 PM
    com.google.apphosting.utils.config.AppEngineWebXmlReader
    readAppEngineWebXml INFO: Successfully processed
    /home/sharma/AndroidstudioProjects/SampleApp7/ServierSide/build/exploded-app/WEB-INF/appengine-web.xml
    Feb 06, 2015 6:17:30 PM
    com.google.apphosting.utils.config.AbstractConfigXmlReader
    readConfigXml</p>
    
    <p>INFO: Successfully processed
    /home/sharma/AndroidstudioProjects/SampleApp7/ServierSide/build/exploded-app/WEB-INF/web.xml
    Feb 06, 2015 6:17:30 PM
    com.google.appengine.tools.development.SystemPropertiesManager
    setSystemProperties</p>
    
    <p>INFO: Overwriting system property key 'java.util.logging.config.file',
    value
    '/home/sharma/.gradle/appengine-sdk/appengine-java-sdk-1.9.14/config/sdk/logging.properties'
    with value 'WEB-INF/logging.properties' from
    '/home/sharma/AndroidstudioProjects/SampleApp7/ServierSide/build/exploded-app/WEB-INF/appengine-web.xml'</p>
  </blockquote>
  
  <hr>
  
  <p>Could not open the requested socket: Address already in use
  Try overriding --address and/or --port.</p>
  
  <p>I understand that, port number i should change, but i don't know much about android studio. So please guide me about.</p>