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JDeveloper Interview Questions

by admin

What is Oracle JDeveloper?

Oracle JDeveloper is Oracle’s Java development tool for building, debugging and deploying business components and database applications for the Internet.

What versions of Oracle JDeveloper are available?

During its evolution, Oracle JDeveloper has gone through some major updates. As Oracle understands that it is not always possible to upgrade in the middle of a project, we are currently maintaining only latest 2 major version for Oracle JDeveloper: Oracle JDeveloper is 12.2.1.4.0.

What are the minimum system requirements for JDeveloper?

For the specifics, please refer to the JDeveloper Release Notes document. It should be noted that as more products need to be run on the same machine, the system requirements for that machine are increased. Consider any development environment which may include:

  • Running JDeveloper
  • Possibly running Oracle Database locally
  • Possibly running Oracle Application Server locally
  • Additional third party tools (profilers, version control, modelers, etc)

These all add to the system requirements both in terms of the actual CPU requirements, but also in their disk space requirements. JDeveloper 12c takes a minimum of 4GB disk space to install the software and Application server domain.

What is the easiest way to add attributes & get/set methods?

In the editor, right click any attribute and from the context menu choose “Generate Accessors”. This will open a dialogbox , in which getter and setters can easily be created.

How can I configure JDeveloper to invoke an external program?

JDeveloper makes it very easy for you to invoke an external program. JDeveloper even displays a menu for that item under JDeveloper’s Tools menu. To add elements to this list, simply click the New button and follow the wizard steps. This is a very simple way to add your Version Control or other tools directly within JDeveloper.

Is JDeveloper supported on Windows, Mac and Unix?

JDeveloper is delivered in 3 different formats: Windows, Linux and Generic. The last one allows JDeveloper to be installed on any Java enabled environment.

How do I change the project properties of a JDeveloper project so that it will compile and run under a different JDK than the default JDK shipped with JDeveloper?

After starting JDeveloper do following steps:

  • Select the Project and choose Project –> Project Properties.
  • Under Configurations –> Development, choose Libraries node.
  • Beside the J2SE Version combo box, click the New… button.
  • Enter the paths to your chosen JDK, and select OK.
  • Now you can use this alternate JDK for compiling/running your Project.

Filed Under: Interview Questions, oracle

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