Eclipse IDE Stuffs

Workspaces

Create different workspaces for different projects

File ➔ Switch Workspace ➔ Other ➔ Click Browse in the dialog box and create a new folder and select

Remove the unused workspaces by
Window ➔ Preferences ➔ General ➔ Startup and Shutdown ➔ Workspaces

---

Eclipse Configuration details

Help ➔ Above Eclipse IDE ➔ Installation details ➔ Configuration tab

Look for -vm line

-vm
D:\BigData\3. Java\Eclipse Java\eclipse-java-2021-06-R-win32-x86_64\eclipse\\plugins/org.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_16.0.1.v20210528-1205/jre/bin\server\jvm.dll
eclipse.vm=D:\BigData\3. Java\Eclipse Java\eclipse-java-2021-06-R-win32-x86_64\eclipse\\plugins/org.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_16.0.1.v20210528-1205/jre/bin\server\jvm.dll
eclipse.vmargs=-Dosgi.requiredJavaVersion=11
java.vm.compressedOopsMode=32-bit
java.vm.info=mixed mode
java.vm.name=OpenJDK 64-Bit Server VM
java.vm.specification.name=Java Virtual Machine Specification
java.vm.specification.vendor=Oracle Corporation
java.vm.specification.version=16
java.vm.vendor=Oracle Corporation
java.vm.version=16.0.1+9-24

---

Building package using Maven

Package Explorer ➔ Right click on package ➔ Run as ➔ Maven Build…

In the Goal input type in clean package

Click RUN

---

Command to run java program from eclipse

Debug Perspective = Windows ➔ Show view ➔ Debug

Right click on the executing program in debug view and select properties.

Raw command would look like this

"D:\BigData\3. Java\Eclipse Java\eclipse-java-2021-06-R-win32-x86_64\eclipse\plugins\org.eclipse.justj.openjdk.hotspot.jre.full.win32.x86_64_16.0.1.v20210528-1205\jre\bin\javaw.exe" -Dfile.encoding=Cp1252 -classpath "C:\Users\Sushanth\Java\Workspace\Java Hello World\bin;D:\BigData\3. Java\Zips & Installers\gson-2.6.2.jar;D:\BigData\3. Java\Zips & Installers\commons-lang3-3.4.jar;D:\BigData\3. Java\Zips & Installers\univocity-parsers-2.0.0.jar;D:\BigData\3. Java\Zips & Installers\velocity-1.7\velocity-1.7\velocity-1.7-dep.jar;D:\BigData\3. Java\Zips & Installers\jsoup-1.8.3.jar;D:\BigData\3. Java\Zips & Installers\juniversalchardet-1.0.3.jar;D:\BigData\3. Java\Zips & Installers\json-20170516.jar;D:\BigData\3. Java\Zips & Installers\commons-io-2.4.jar;D:\BigData\3. Java\Zips & Installers\mysql-connector-java-8.0.12.jar" -XX:+ShowCodeDetailsInExceptionMessages BTD.files2download

To see the console messages(System.out.println), you need to update from javaw.exe to java.exe,

• javaw.exe - doesn’t show the console.log outputs
• java.exe - shows the console.log outputs

---

Thank you for reading