EECS 40 Lecture 5: EECS 40 - Lec 5

• School: UC-Irvine
• Department: Electrical Engineering & Computer Science
• Course: EECS 40
• Professor: Pooria Yaghini

Document Summary

Assign the book objects to the reference variables. The two book objects are now living on the heap. Declare a new book reference variable rather than creating a new, third. I(cid:23479)"(cid:23478) (cid:23471)(cid:23468)(cid:23470)(cid:23464) (cid:23478)(cid:23460)(cid:23484)(cid:23468)(cid:23473)(cid:23466), (cid:23560)t(cid:23460)(cid:23470)(cid:23464) (cid:23479)(cid:23467)(cid:23464) (cid:23461)(cid:23468)(cid:23479)(cid:23478) (cid:23468)(cid:23473) c, make a copy of them, and stick that copy into d(cid:23409)(cid:23561) Both c and d refer to the same object. The c and d variables hold two different copies of the same value. Assign the value null to variable c. this makes c a null reference, (cid:23472)(cid:23464)(cid:23460)(cid:23473)(cid:23468)(cid:23473)(cid:23466) (cid:23468)(cid:23479) (cid:23463)(cid:23474)(cid:23464)(cid:23478)(cid:23473)"(cid:23479) (cid:23477)(cid:23464)(cid:23465)(cid:23464)(cid:23477) (cid:23479)(cid:23474) (cid:23460)(cid:23473)(cid:23484)(cid:23479)(cid:23467)(cid:23468)(cid:23473)(cid:23466)(cid:23409) b(cid:23480)(cid:23479) (cid:23468)(cid:23479)"(cid:23478) (cid:23478)(cid:23479)(cid:23468)(cid:23471)(cid:23471) (cid:23460) (cid:23477)(cid:23464)(cid:23465)(cid:23464)(cid:23477)(cid:23464)(cid:23473)(cid:23462)(cid:23464) (cid:23481)(cid:23460)(cid:23477)(cid:23468)(cid:23460)(cid:23461)(cid:23471)(cid:23464) (cid:23460)(cid:23473)(cid:23463) another book object can still be assigned to it. Object 2 still has an active reference(b), and as long as it does, the object is not eligible for gc. Packages are collections of related java files. W(cid:23474)(cid:23480)(cid:23471)(cid:23463) (cid:23461)(cid:23464) (cid:23471)(cid:23474)(cid:23462)(cid:23460)(cid:23479)(cid:23464)(cid:23463) (cid:23468)(cid:23473) (cid:23479)(cid:23467)(cid:23464) (cid:23410)(cid:23483)(cid:23415)(cid:23411)(cid:23410)(cid:23482)(cid:23464)(cid:23464)(cid:23470)-3 directory. F(cid:23468)(cid:23477)(cid:23478)(cid:23479) (cid:23471)(cid:23468)(cid:23473)(cid:23464) (cid:23474)(cid:23465) (cid:23464)(cid:23481)(cid:23464)(cid:23477)(cid:23484) (cid:23465)(cid:23468)(cid:23471)(cid:23464) (cid:23468)(cid:23473)(cid:23462)(cid:23471)(cid:23480)(cid:23463)(cid:23464) (cid:23560)(cid:23475)(cid:23460)(cid:23462)(cid:23470)(cid:23460)(cid:23466)(cid:23464) (cid:23483)(cid:23415)(cid:23411) (cid:23482)(cid:23464)(cid:23464)(cid:23470)-(cid:23414)(cid:23561)