✅ How to Switch to Java 17 on Windows (Latest & Easiest Method)

This guide shows the cleanest and safest way to switch to Java 17, even if you don’t have administrator access.

🔹 Step 1: Open Environment Variables

Method A (Fast):

Press Windows + R, then type:

sysdm.cpl

Press Enter → Go to Advanced tab → Click Environment Variables

Method B (Administrator Access):

  • Press Windows key
  • Search: Environment Variables or sysdm.cpl
  • Right-click on it
  • Select Run as administrator

✔ This unlocks System variables (Edit button will no longer be greyed out)

🔹 Step 2: Confirm Java 17 Installation

C:\Program Files\Microsoft\jdk-17.0.18.8-hotspot

🔹 Step 3: Set JAVA_HOME

Variable Name: JAVA_HOME
Variable Value: C:\Program Files\Microsoft\jdk-17.0.18.8-hotspot

🔹 Step 4: Fix PATH (Most Important)

Edit Path and add:

%JAVA_HOME%\bin

Move it to the TOP

Remove or move down:

  • Old Java (11, 21, 25)
  • Oracle path: C:\Program Files\Common Files\Oracle\Java\javapath

⚠️ If “Edit” is Still Greyed Out

You likely don’t have admin access. Do this instead:

  • Use User variables
  • Edit Path
  • Add %JAVA_HOME%\bin
  • Move it to the top

✔ This works perfectly without admin rights.

🔹 Step 5: Restart

  • Close CMD / PowerShell
  • Restart Android Studio
  • (Optional) Restart your PC

🔹 Step 6: Verify

java -version

Expected:

openjdk version "17.0.18"

🔥 Android Studio Users

File → Settings → Build Tools → Gradle → Gradle JDK = 17

🎯 Done! Java 17 is now active.

Comments

Post a Comment

Popular posts from this blog

NR-V2X Mode 2 in ns-3 In 5G NR-V2X, vehicles communicate directly using sidelink. Two modes exist: Mode 1: gNB schedules sidelink resources. Mode 2: UEs autonomously select sidelink resources (no gNB needed). Mode 2 is especially important for vehicular networks (IoV), where cars must exchange safety messages without relying on infrastructure. In ns-3, the NrHelper class is used to: Create UE devices with sidelink PHY/MAC layers. Attach them to Bandwidth Parts (BWPs) and spectrum channels. Configure sidelink attributes such as: SidelinkMode = 2 (autonomous) SidelinkPeriod (resource pool periodicity) SidelinkSubchannelSize (RB grouping)
Read more

From DSRC to 5G NR-V2X: The Road Ahead for Connected Vehicles

Modern vehicles are no longer just machines on wheels. Through Vehicle-to-Everything (V2X) communication , they are becoming active participants in intelligent transport systems, enabling safer driving, smoother traffic, and progress toward automation. DSRC: The First Step The earliest V2X technology was Dedicated Short-Range Communications (DSRC) , based on IEEE 802.11p. Operating in the 5.9 GHz band , it allowed onboard units (OBUs) in vehicles to exchange safety and infotainment data with roadside units (RSUs) . While DSRC was effective for short-range messaging, it faced limits in coverage, data rate, and quality of service (QoS) . These challenges motivated researchers to explore new solutions. D2D and the Cellular Shift A key breakthrough came with Device-to-Device (D2D) communication , where vehicles exchange information directly without always relying on infrastructure. This reduces latency, eases network congestion, and helps maintain reliability in crow...
Read more
How to Fix the LaTeX “Not allowed in LR mode” Error When Highlighting Revisions If you highlight changes in a LaTeX manuscript using commands such as \change{...} , \rev{...} , or \hl{...} , you may eventually run into this error: LaTeX Error: Not allowed in LR mode. This often confuses authors, especially during journal revisions. Fortunately, the cause is simple: you placed a command inside the highlight block that LaTeX does not allow in LR mode. 🔍 Why This Error Happens Highlight macros like \change{} put LaTeX into a restricted text-only mode called LR mode . Inside LR mode, LaTeX only accepts basic text . The following commands cannot appear inside a highlight block: Section commands: \section , \subsection , \subsubsection Figures and tables List environments ( itemize , enumerate ) Math environments ( equation , align ) Captions and labels ( \caption , \label ) Any \begin{...} / \end{...} environment If even one of these appears in...
Read more