Ndinowana sei nzira yangu yekirasi?
Kuti titarise yedu CLASSPATH paWindows tinogona vhura chirevo chekuraira uye nyora echo % CLASSPATH%. Kuti utarise paMac unofanirwa kuvhura terminal uye wonyora echo $CLASSPATH.
Chii chinonzi Unix classpath?
Nzira yekirasi ndeye rondedzero yemaraibhurari ekirasi anodiwa neJVM uye mamwe maapplication eJava kumhanyisa chirongwa chako. Pane zvinyorwa zvinosanganisirwa neDerby zvinogona kumisikidza nzira yekirasi yekumhanyisa maturusi eDerby.
Ndinotumira sei nzira yekirasi?
Kuseta iyo CLASSPATH zvachose, isa shanduko yenzvimbo:
- PaWindows Control Panel, tinya System.
- Dzvanya Advanced kana Advanced Systems Settings.
- Click Environment Variables.
- Pasi peMushandisi variables, tinya Nyowani.
- MuBhokisi reZita rinochinjika, nyora CLASSPATH .
- Muiyo Variable value box, nyora nzira inoenda kuVertica JDBC.
Iwe unoseta sei classpath variables?
GUI:
- Sarudza Kutanga.
- Enda kuDanho reKudzora.
- Sarudza System uye Chengetedzo.
- Sarudza Advanced System marongero.
- Click on Environment Variables.
- Dzvanya paItsva pasi peSystem Variables.
- Wedzera CLASSPATH sezita rakasiyana uye nzira yemafaira sechinhu chinoshanduka.
- Sarudza OK.
Iwe unoseta sei classpath muUnix?
Kuseta iyo CLASSPATH zvachose, isa shanduko yenzvimbo:
- PaWindows Control Panel, tinya System.
- Dzvanya Advanced kana Advanced Systems Settings.
- Click Environment Variables.
- Pasi peMushandisi variables, tinya Nyowani.
- MuBhokisi reZita rinochinjika, nyora CLASSPATH .
- Muiyo Variable value box, nyora nzira inoenda kuVertica JDBC.
Ndinowana sei CLASSPATH yangu muUnix?
Nhanho#1: Svika Classpath
- Nhanho#1: Svika Classpath.
- Chekutanga, ngatitarisei nzira yekirasi iri pano, uye neiyo, ngativhure iyo terminal tonyora mukati. echo $ {CLASSPATH} ...
- Nhanho#2: Gadziridza Classpath.
- Kuseta nzira yekirasi, nyora iyo yekuraira kutumira CLASSPATH=/root/java wopinda.
Iripi faira rechirongo riri muLinux?
Unogonawo kuita tsvaga ./ -zita “*. jar” | xargs grep -n 'main' kuwana zvese. jar mafaira ane chikuru mukati mawo. Unogona kushandisa murairo find , kana uchida kuita izvi kuburikidza neterminal.
Ini ndinowana sei mafaera eJava paLinux?
Izvi zvinoenderana zvishoma kubva pasuru yako system… Pa OpenSUSE system yandiri ikozvino inodzoka /usr/lib64/jvm/java-1.6. 0-openjdk-1.6. 0/jre/bin/java (asi iyi haisi system inoshandisa apt-get ).
Chii chinonzi CP muJava?
The -cp, kana CLASSPATH, inoshandiswa sechisarudzo kune murairo weJava. Iyo paramende muJava Virtual Machine kana Java compiler inotsanangura nzvimbo yemakirasi uye mapakeji anotsanangurwa nemushandisi. … Iyo -cp parameter inotsanangura rondedzero yemadhairekitori, JAR archives uye ZIP archives kutsvaga mafaera ekirasi.
Chii chinonzi Java library nzira?
java. library. nzira iri a System pfuma, iyo inoshandiswa neJava programming mutauro, kazhinji JVM, kutsvaga maraibhurari emunharaunda, anodiwa neprojekiti. Zvakafanana nePATH uye Classpath nharaunda inoshanduka, java. library.
Unogadzirisa sei NoClassDefFoundError?
NoClassDefFoundError, zvinoreva kuti Kirasi Loader faira rine mutoro wekurodha zvine simba makirasi haawane iyo . kirasi faira. Saka kuti ubvise kukanganisa uku, unofanirwa isa nzira yako yekirasi kunzvimbo iyo Kirasi yako Loader iripo. Ndinovimba inobatsira !!
Ndinowana sei nzira yangu yejava?
Vhura iyo Command Prompt hwindo (Win⊞ + R, nyora cmd, hit Enter). Enter the raira maungira %JAVA_HOME% . Izvi zvinofanirwa kuburitsa nzira kune yako Java yekuisa folda.
JDK iripi muLinux?
Zvimwe, unogona kushandisa iyo whereis command uye tevera zvinongedzo zvekufananidzira kuwana nzira yeJava. Izvo zvinobuda zvinokuudza kuti Java iri mukati /usr/bin/java. Kuongorora dhairekitori kunoratidza kuti /usr/bin/java ingori chiratidzo chechiratidzo che /etc/alternatives/java.