你即將離開本站

並前往https://www.rforge.net/doc/packages/rJava/jnull.html

R: Java null object reference - RForge.net

The resulting object is of the class jobjRef . is.jnull is an extension of is.null that also returns TRUE if the supplied object is a null Java reference.

確定！ 回上一頁

查詢 「Java if null」的人也找了：

  1. Java if null
    2.
  2. Java 判斷 null
    3.
  3. Java if null default value
    4.
  4. Java if not null
    5.
  5. Java if Boolean null
    6.
  6. Java object null
    7.
  7. Java null
    8.
  8. Java isNull
    9.