ACDK Guide-CDK Foundation
Translation: Xue Changyu We will introduce you to the ACDK foundation.
This chapter: Establish an object Access Method Access Field Release Object Replication Reference Replication Instance Parameter and Return Value
Establish an object to create a new object using 'new'. Save this new object to a reference. A type of reference to an object is the name of the R class, such as the type of StringBuffer is RStringBuffer.
{RStringBuffer SB = new stringbuffer ();
The access method is different from Java, which is different for static or dynamic approaches.
{RStringBuffer SB = New StringBuffer (); SB-> Append ("hi"); // Non static call rstring str = string :: valueof (3.4); // static cal}
Accepted fields In general, the fields of access to the class are not directly accessed by the SET / GET method.
Release the object object is released. If the final pointing to the reference to this object disappears, they will be automatically released. As a choice, you can also directly assign the NIL value to this reference:
{RStringBuffer SB1 = New StringBuffer ("m"); SB1-> Append ("ja"); SB1 = NIL; // SB1 no longer saved StringBuffer, StringBuffer will be removed}
Copy reference If you want to copy a reference, you can easily do this:
{RStringBuffer SB1 = New StringBuffer ("m"); RStringBuffer SB2 = SB1; // SB2 will contain the same StringBuffer instance SB2-> Append ("a"); SB1-> Append ("ja"); // StringBuffer Because the content is "maja" ("ACDK" in the original text, but I think it is the author's incorrectly)}
See: Quote.
Copy Example In ACDK, you can copy an instance (not just reference) {RStringBuffer SB1 = New StringBuffer ("m"); rstringbuffer sb2 = sb1-> clone (); // SB2 contains a replica SB2-> Append "A"); SB1-> Append ("ja"); // SB2 content "ma" // SB1 content "aja"}
The parameters and return values are default, only the parameters or return values that can be used as the method can be referenced. Similar to rules in Java.
Rinteger myparse (RStringBuffer arg) {rtring str = arg-> toString (); rinteger Erg = INTEGER :: PARSEINT (STR); Return Erg;}
// The same, but more 'inlined' version of Rinteger myparse (RStringBuffer Arg) {Return Integer :: PARSEINT (Arg-> toString ());
