Ma hea kahi i hoʻokomo ai kaʻu JDK i Linux?

Contents

Where is my jdk located Linux?

Eia kekahi, hiki iāʻoe ke hoʻohana the whereis command and follow the symbolic links to find the Java path. The output tells you that Java is located in /usr/bin/java. Inspecting the directory shows that /usr/bin/java is only a symbolic link for /etc/alternatives/java.

How do I know where my jdk is installed?

E hoʻomaka i ka papa kuhikuhi > Computer > System Properties > Advanced System Properties. A laila e wehe i ka papa kiʻekiʻe> Environment Variables a ma ka ʻōnaehana hoʻololi e hoʻāʻo loaʻa iā JAVA_HOME. Hāʻawi kēia iaʻu i ka waihona jdk.

Ma hea kahi i hoʻokomo ʻia ai ʻo jdk ma Ubuntu?

Ma ka maʻamau, hoʻokomo ʻia ʻo java ma /usr/lib/jvm . ʻO ia kahi i hoʻokomo ʻia ai kaʻu sun jdk. e nānā inā like ia no ka jdk wehe pū kekahi. Ma ka Ubuntu 14.04, aia ma /usr/lib/jvm/default-java .

Pehea wau e ʻike ai inā hoʻokomo ʻia ʻo Tomcat ma Linux?

Ke hoʻohana nei i nā memo hoʻokuʻu

Windows: type RELEASE-NOTES | loaʻa i ka "Apache Tomcat Version" Hua'ōlelo: Apache Tomcat Version 8.0.22.
Linux: cat RELEASE-NOTES | grep "Apache Tomcat Version" Hoʻopuka: Apache Tomcat Version 8.0.22.

Pehea wau e ʻike ai i ka mana Linux OS?

E nānā i ka mana os ma Linux

E wehe i ka palapala noi terminal (bash shell)
No ka hoʻopaʻa inoa kikowaena mamao e hoʻohana ana i ka ssh: ssh user@server-name.
Kākau i kekahi o kēia kauoha e ʻike i ka inoa os a me ka mana ma Linux: cat /etc/os-release. lsb_release -a. hostnamectl.
Kākau i kēia kauoha e ʻimi i ka Linux kernel version: uname -r.

How do I know if I have java installed from command prompt?

pane

E wehe i ke kauoha kauoha. E hahai i ke ala papa kuhikuhi Start> Programs> Accessories> Command Prompt.
ʻAno: java -version a pēhi iā Enter ma kāu kīpē. Ka hopena: ʻO kahi memo e like me kēia e hōʻike ana ua hoʻokomo ʻia ʻo Java a ua mākaukau ʻoe e hoʻohana i ka MITSIS ma o ka Java Runtime Environment.

Pehea wau e ʻike ai inā loaʻa iaʻu ka JDK a i ʻole OpenJDK?

Hiki iā ʻoe ke kākau i kahi palapala bash maʻalahi e nānā i kēia:

E wehe i kekahi mea hoʻoponopono kikokikona (ʻoi aku ka maikaʻi o vim a i ʻole emacs).
hana i kahi faila i kapa ʻia ʻo script.sh (a i ʻole kekahi inoa me ka . …
e hoʻopili i kēia code i loko: #!/bin/bash inā [[ $(java -version 2>&1) == *”OpenJDK”* ]]; a laila e kani maikaʻi; 'aʻole maikaʻi'; fi.
mālama a haʻalele i ka mea hoʻoponopono.

Pehea wau e ʻike ai i kaʻu ala java?

E hōʻoia iā JAVA_HOME

E wehe i kahi puka makani Command Prompt (Win⊞ + R, type cmd, kaomi Enter).
E hoʻokomo i ke kauoha echo %JAVA_HOME% . Pono kēia e hoʻopuka i ke ala i kāu waihona hoʻonohonoho Java. Inā ʻaʻole, ʻaʻole i hoʻonohonoho pono ʻia kāu hoʻololi JAVA_HOME.

Pehea wau e hoʻoiho ai iā JDK ma Linux?

E hoʻouka i ka JDK 64-iki ma ka paepae Linux:

Hoʻoiho i ka faila, jdk-9. ʻuʻuku. palekana. …
Hoʻololi i ka papa kuhikuhi i kahi āu e makemake ai e hoʻouka i ka JDK, a laila neʻe i ka. kāhiko gz archive binary i ka papa kuhikuhi o kēia manawa.
Wehe i ka tarball a hoʻokomo i ka JDK: % tar zxvf jdk-9. …
Holoi i ka. kāhiko

Pehea wau e hoʻokomo ai iā Java ma Linux terminal?

Ke hoʻouka nei iā Java ma Ubuntu

E wehe i ka pahu (Ctrl+Alt+T) a hoʻohou i ka waihona waihona e hōʻoia ʻoe e hoʻoiho i ka polokalamu polokalamu hou loa: sudo apt update.
A laila, hiki iā ʻoe ke hoʻokomo i ka Java Development Kit hou me kēia kauoha: sudo apt install default-jdk.

ʻO wai ka JDK e pono iaʻu e hoʻoiho no Ubuntu?

Ma ka maʻamau, ʻo Ubuntu 18.04 ka Open JDK (open source JRE a me JDK version). Hoʻokomo ʻia kēia pūʻolo OpenJDK version 10 a i ʻole 11. A hiki i Kepakemapa 2018, ua hoʻokomo ʻia ʻo OpenJDK 10. Ma hope o Kepakemapa 2018, ua hoʻokomo ʻia ʻo OpenJDK 11.