1. Casting reference variable in Java stackoverflow.comI have something unclear concerning casting reference variable in Java. I have two classes A and B. A is the super class of B. If I have the two objects, and then ... |
2. Local variable assignment to avoid multiple casts stackoverflow.comThere was recently a question asking whether it was a good idea in Java to assign the results of calling a getter to a local variable to avoid multiple calls to ... |
3. String variable to a DefaultMutableTreeNode object? stackoverflow.comIs it possible to convert a String variable to a DefaultMutableTreeNode object? Please explain. Context: |
4. java: how can i do dynamic casting of a variable from one type to another? stackoverflow.comi would like to do dynamic casting for a java variable, the casting type is stored in a different variable. this is regular casting: |
5. variable type question java stackoverflow.comSo here is my problem im trying to search an array for a value and then return the index as well as the string name. But my problem is that when i ... |
6. Type casting the `Object` type variables stackoverflow.comI need to call a function with the following signature.
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7. type casting required on function calls taking short datatype variable as a parameter stackoverflow.comWhenever I use byte or short data type as a method parameter, on method calls, I am required to explicitly cast the values I pass to those methods.
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8. Casting variables in Java stackoverflow.comI wonder if anyone could tell me why casting works? I understand WHEN I should do it, but not really why it works. On primitive datatypes I understand partially but when ... |
9. Problems in casting variables stackoverflow.comI am trying to construct an object using the following constructor in Java: |
10. why do final variables not need a cast? coderanch.comWhen the variable is final, the compiler can make some optimizations. In this case, it can detect that the value is small enough to still be stored as a byte rather than an int. When the int variable isn't final, then the compiler doesn't make that assumption. I don't know any specific reason why it can't. From my basic knowledge of ... |
11. Casting based on a variable not an object name. coderanch.comIs there any way to cast an object based on a variable and not the actual object name? For example I know I can do this: public class testCast(Texas tx){ // Texas extends State State state = null; State = (Texas)tx; } What if I had an object of Texas but did not know the name of the class but had ... |
12. referrence variable casting coderanch.comHi, welcome to the ranch! Here's an answer that shows a questionable design on an API I use. A base class Entry is extended by File and Folder. I can ask for the entries in a folder that are files or folders or both. Entry[] entries = getEntries( someFolder, BOTH ); Entry one = entries[0]; one.someEntryMethod(); Now I can call all ... |
13. what is reffering variable casting coderanch.com |
14. Reference Variable Casting coderanch.comThis block of code is given in SCJP Sun Certified Programmer for Java 6 Exam - Mc Graw Hill. I am not able to understand what some of the lines actually does. class Animal { void makeNoise() {System.out.println(bark); } } class Dog extends Animal { void makeNoise() {System.out.println("bark"); } void playDead() {System.out.println("roll over"); } } class CastTest2 { public static void ... |
15. Any good article about reference variables casting ... forums.oracle.comHi, I am looking for a good and simple article on the reference variables downcasting (and yes I am searching the Internet too so please do not suggest that). Please let me know if you know of any good article or if you can explain it well as I am having hard time to figure out when it is right and ... |
16. doubt in reference variable casting ............... forums.oracle.com |
17. Doubt in reference variable casting forums.oracle.com10. interface Foo {} 11. class Alpha implements Foo { } 12. class Beta extends Alpha {} 13. class Delta extends Beta { 14. public static void main( String[] args) { 15. Beta x = new Beta(); 16. // insert code here 17. } 18. } Which code, inserted at line 16, will cause a java.lang.ClassCastException? A. Alpha a = x; ... |
18. Primitive Variable Type Casting forums.oracle.comDear all, as I was studying the SCJP Certification book, I notice the following: This case shows compilation error: byte a = 3; byte b = 8; byte c = a + b; This case shows no problem: byte c = 3 + 8; According to the book, 3 and 8 will be converted to int type. However, the lower one ... |
19. Casting primitive wrap type variable to primitive forums.oracle.comWe have this code: ... float f = 22.2f; System.out.println((int)f); ... Which prints out "22". ... Float f = 22.2f; System.out.println((int)f); ... When i changed the variabile type from float to Float, code throw up a compile a error, that Float type cannot be casted to int. Can somebody tell me what's going on? Isnt compiler supposed to do unboxing the ... |
20. Cast string as variable? How? forums.oracle.comHow can i convert string value to a variable For example i have a string like; String a="myvariable"; And now the real variable; String myvariable; Then; a.CastAsVariable()="hello"; How can i do that.... As i remember Flash action scripting has eval function for this. How can i do this with java? thank you Message was edited by: netsonicc |