Cov txheej txheem:

Dab noj hnub nrhiav Java li cas?
Dab noj hnub nrhiav Java li cas?

Video: Dab noj hnub nrhiav Java li cas?

Video: Dab noj hnub nrhiav Java li cas?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Txhawm rau txheeb xyuas dab tsi Java version (JRE lossis JDK) dab noj hnub, ua cov hauv qab no:

  1. Qhib cov ntawv qhia zaub mov Pab> Txog Dab tuag . (Nyob rau Mac, nws yog nyob rau hauv Dab tuag -menu, tsis yog Help-menu)
  2. Nyem rau Installation Details.
  3. Hloov mus rau tab Configuration.
  4. Nrhiav ib kab uas pib nrog -vm.

Hais txog qhov no, dab tsi Java siv dab tsi?

pom uas Java Eclipse nws tus kheej yog siv mus rau Pab> Txog Dab tuag nyem Installation Details thiab saib ntawm Configuration tab. Thaum koj khiav Java cov kev pab cuam los ntawm Dab tuag koj tuaj yeem xaiv qe Java yog siv.

Ib yam li ntawd, Dab Ntxwg Nyoog puas muaj inbuilt JDK? Tam sim no tso tawm ntawm Dab tuag xav tau Java 8 lub tshiab. Yog koj siv Dab tuag rau ua Java kev txhim kho, lossis nyob ntawm macOS, nruab a JDK . Hauv txhua kis, 64-ntsis Dab tuag xav tau 64-ntsis JVM, thiab 32-ntsis Dab tuag xav tau 32-ntsis JVM.

Ua raws li qhov no hauv kev txiav txim siab, Dab Ntxwg Nyoog Puas Xav Tau Java_home?

Yog hais tias ib tug JVM raug ntsia rau hauv lub dab noj hnub /jre directory, Dab tuag yuav siv nws; txwv tsis pub tus launcher yuav sab laj rau dab noj hnub . ini cov ntaub ntawv thiab cov kab ke sib txawv. Eclipse YOG TSIS tham txog JAVA_HOME ib puag ncig hloov pauv.

Puas Eclipse Xav Tau JDK lossis JRE?

Yog lawm! Dab noj hnub xav tau JRE hauv java programming. Couse JDK Nws yog tsim nyog los sau cov code thiab hloov java code rau hauv byte code thaum JRE yog xav tau rau executing byte code. JDK suav nrog JRE ntxiv rau command-line txhim kho cov cuab yeej xws li compiler thiab debuggers uas tsim nyog rau kev tsim applet thiab daim ntawv thov.

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