1.1 Ku-Ubuntu okanye kwi-Linux, sinokusebenzisa yeyiphi i-javac ukufumana apho i-JDK ifakwe khona. Kulo mzekelo ungentla, i-JDK ifakwe kwi /usr/lib/jvm/adoptopenjdk-11-hotspot-amd64/. 1.2 Kwi-Windows, sinokusebenzisa apho i-javac ukufumanisa apho i-JDK ifakwe khona.
Ndiyifumana njani inguqulo yam ye-JDK Ubuntu?
Ukujonga inguqulelo yeJava kwiLinux Ubuntu/Debian/CentOS:
- Vula ifestile yesiphelo.
- Yenza lo myalelo ulandelayo: java -version.
- Imveliso kufuneka ibonise uguqulelo lwefayile ye Java efakwe kwindlela yakho. Kulo mzekelo ungezantsi, i-OpenJDK version 11 ifakiwe.
What version of JDK do I have?
Inguqulelo yeJava inokufumaneka kwiPhaneli yoLawulo yeJava. Ngaphantsi kwe-General tab kwiPhaneli yoLawulo yeJava, inguqulelo ifumaneka ngecandelo elimalunga. Incoko yababini iyavela (emva kokucofa Malunga) ebonisa uguqulelo lweJava.
Ndazi njani ukuba iJDK yam ifakwe kwiLinux?
Oku kuxhomekeke kancinane kwindlela yakho yephakheji ... ukuba umyalelo we-java uyasebenza, ungachwetheza readlink -f $(eyiphi ijava) ukufumana indawo yomyalelo we-java. Kwinkqubo ye-OpenSUSE endikuyo ngoku iyabuya /usr/lib64/jvm/java-1.6. 0-openjdk-1.6. 0/jre/bin/java (kodwa le ayisiyonkqubo esebenzisa apt-get ).
Ndazi njani ukuba ndine-JDK efakiweyo?
Usenokuba nokuba yi-JRE (i-Java Runtime Environment) efunekayo ukuze usebenzise izicelo ze-java kwikhompyuter okanye kwi-JDK njengoko kubonisiwe ngezantsi. 1. Vula umyalelo womyalelo kwaye ungenise "java -version". Ukuba inombolo yenguqulelo efakiweyo iyaboniswa.
How do I know if I have jdk or OpenJDK?
Ungabhala iskripthi esilula se-bash ukujonga oku:
- Vula nawuphi na umhleli wokubhaliweyo (ngokukhethekileyo vim okanye emacs).
- yenza ifayile enegama elithi script.sh (okanye naliphi na igama eline . …
- coma ikhowudi elandelayo kuyo: #!/bin/bash ukuba [[ $(java -version 2>&1) == *”OpenJDK”* ]]; emva koko i-echo ok; kungenjalo 'akulungile'; iFi.
- gcina kwaye uphume kumhleli.
Ndazi njani ukuba iJVM iyasebenza kwiLinux?
Unga sebenzisa i jps umyalelo (ukusuka kwi bin incwadi eneenkcukacha ye JDK ukuba ayikho emendweni wakho) ukufumanisa ukuba zeziphi iinkqubo zejava (JVMs) ezisebenzayo kumatshini wakho. Kuxhomekeke kwi-JVM kunye nee-libs zomthonyama. Unokubona imisonto ye-JVM ibonisa ngee-PID ezahlukileyo kwi-ps.
Ngaba i-java 1.8 iyafana ne-java 8?
javac -source 1.8 (sisibizo se javac-umthombo 8 ) java.
What is the latest JDK version?
Ukukhutshwa kweLTS yangoku I-JDK 11, efike ngoSeptemba 2018. Ukukhutshwa kwe-LTS kufika rhoqo emva kweminyaka emithathu. I-JDK 15 ilandela i-JDK 14, eyakhutshwa nge-17 kaMatshi ngo-2020.
Ngaba iJdk isimahla ukuyisebenzisa?
You can download the latest OpenJDK release of Java from Oracle, for khulula, under an open source license from jdk.java.net.
Ndazi njani ukuba iTomcat ifakiwe kwiLinux?
Ukusebenzisa amanqaku okukhululwa
- IiWindows: chwetheza UKUKHULULWA-AMANQAKU | fumana "Apache Tomcat Version" Isiphumo: Apache Tomcat Version 8.0.22.
- Linux: ikati UKUKHUPHA-AMAQAPHELO | grep "Inguqulo ye-Apache Tomcat" Isiphumo: Inguqulo ye-Apache Tomcat 8.0.22.
Where does OpenJDK install?
Re: openJDK install path
Note: Cloudera strongly recommends installing Oracle JDK at /usr/java/<jdk-version> and OpenJDK at /usr/lib/jvm (or /usr/lib64/jvm on SLES 12), which allows Cloudera Manager to auto-detect and use the correct JDK version.
Ndiyifumana njani indlela yam yejava?
Vula iwindow ye-Command Prompt (Win⊞ + R, chwetheza cmd, ucofe u-Enter). Ngena i umyalelo we-echo %JAVA_HOME% . Oku kufuneka kukhuphe umendo kulawulo lwakho lofako lweJava.
Can NetBeans run without JDK?
Note: Java TM SE Development Kit (JDK) 5.0, JDK 6, and JDK 7 are not supported on any platform for this release. You must have JDK 8 on your system to install and run NetBeans IDE 8.2.
Ngaba i-OpenJDK iyafana ne-Oracle JDK?
I-Oracle JDK yayinikwe ilayisenisi phantsi kweSivumelwano seLayisensi yeKhowudi ye-Oracle yeBhinary, ngelixa i-OpenJDK ineLayisensi kaWonke-wonke ye-GNU (GNU GPL) uguqulelo lwesi-2 ngaphandle kokudibanisa. Kukho ezinye iimpembelelo zelayisensi xa usebenzisa iqonga le-Oracle. ... Nangona kunjalo, I-OpenJDK ngumthombo ovuleleke ngokupheleleyo kwaye unako isetyenziswe ngokukhululekileyo.
Ndiyifaka njani i-JDK yamva nje ku-Ubuntu?
I-Java Runtime Environment
- Emva koko kufuneka ukhangele ukuba iJava sele ifakiwe: i-java -version. …
- Qalisa lo myalelo ulandelayo ukufaka i-OpenJDK: sudo apt install default-jre.
- Chwetheza u-y (ewe) kwaye ucinezele u-Enter ukuqalisa ukufakela. …
- I-JRE ifakiwe! …
- Chwetheza u-y (ewe) kwaye ucinezele u-Enter ukuqalisa ukufakela. …
- I-JDK ifakiwe!