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java Programming Glossary: cast

Dynamic Graphics Object Painting In Java

http://stackoverflow.com/questions/10628492/dynamic-graphics-object-painting-in-java

Graphics2D object for the JComponent it is necessary to cast it in paintComponent . A Graphics2D instance accepts rendering..

Get Edited TreeNode from a CellEditorListener

http://stackoverflow.com/questions/11107984/get-edited-treenode-from-a-celleditorlistener

javax.swing.tree.DefaultTreeCellEditor 1 cannot be cast to javax.swing.tree.DefaultTreeCellEditor EDIT In another attempt..

What is null in Java?

http://stackoverflow.com/questions/2707322/what-is-null-in-java

is not null and the reference could be cast to the ReferenceType without raising a ClassCastException ... is impossible to declare a variable of the null type or to cast to the null type. The null reference is the only possible value.. expression of null type. The null reference can always be cast to any reference type. In practice the programmer can ignore..

What is a raw type and why shouldn't we use it?

http://stackoverflow.com/questions/2770321/what-is-a-raw-type-and-why-shouldnt-we-use-it

name throws ClassCastException java.lang.Boolean cannot be cast to java.lang.String Now we run into trouble at run time because.. and manually check every add yourself and then manually cast to String every item from names . Even better though is NOT..

How to use java.net.URLConnection to fire and handle HTTP requests?

http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests

if a button was pressed and if so which one . You can also cast the obtained URLConnection to HttpURLConnection and use its..

How to read XML using XPath in Java

http://stackoverflow.com/questions/2811001/how-to-read-xml-using-xpath-in-java

in that code and the return type you are expecting and cast the result to the object type of the result. If you need help..

Java Integer division: How do you produce a double?

http://stackoverflow.com/questions/3144610/java-integer-division-how-do-you-produce-a-double

denom but there has to be another way right I don't like casting primitives who knows what may happen. java math integer.. share improve this question double num 5 That avoids a cast. But you'll find that the cast conversions are well defined... double num 5 That avoids a cast. But you'll find that the cast conversions are well defined. You don't have to guess just check..

Java Generics

http://stackoverflow.com/questions/490091/java-generics

new Interger 2 v.add new Hashtable However they do this by casting everything you give it into an Object the root of all java.. the values stored in your Vector. When you do you need to cast the value back into the original class if you want to do anything.. More than that the compiler whines at you about unchecked casts. For a vivid example of this use the XML RPC library from Apache..

How do I address unchecked cast warnings?

http://stackoverflow.com/questions/509076/how-do-i-address-unchecked-cast-warnings

do I address unchecked cast warnings Eclipse is giving me a warning of the following form.. me a warning of the following form Type safety Unchecked cast from Object to HashMap String String This is from a call to.. The obvious answer of course is not to do the unchecked cast. If it's absolutely necessary then at least try to limit the..

Android post picture to Facebook wall

http://stackoverflow.com/questions/5168145/android-post-picture-to-facebook-wall

not errors 03 02 14 19 29.554 WARN Bundle 1891 Attempt to cast generated internal exception 03 02 14 19 29.554 WARN Bundle..

How to convert List<Integer> to int[] in Java?

http://stackoverflow.com/questions/960431/how-to-convert-listinteger-to-int-in-java

List.toArray actually returns an Object which can be cast to nether Integer or int . Right now I'm using a loop to do..

Seeking clarification on apparent contradictions regarding weakly typed languages

http://stackoverflow.com/questions/9929585/seeking-clarification-on-apparent-contradictions-regarding-weakly-typed-language

three of those forms of strong typing to be violated. The cast operator violates static typing it says to the compiler I know..

.drawLine() issues and buffered image

http://stackoverflow.com/questions/11886866/drawline-issues-and-buffered-image

object hence you don't really have to worry about the Cast thingy in this. Please do have a look at the example below ..

What's the issue with creating a generic array? [duplicate]

http://stackoverflow.com/questions/18581002/whats-the-issue-with-creating-a-generic-array

you notice the compiler would be giving you an Unchecked Cast Warning there as you are typecasting to an array of unknown.. arr getArray 10 this will fail at runtime with a ClassCastException. So no this way will not work always. What about creating..

Does Java casting introduce overhead? Why?

http://stackoverflow.com/questions/2170872/does-java-casting-introduce-overhead-why

is done automatically and there is no overhead String s Cast Object o s implicit casting Explicit casting when you go from.. in case that casting is not feasible JVM must throw a ClassCastException. Taken from JavaWorld The cost of casting Casting is.. Taken from JavaWorld The cost of casting Casting is used to convert between types between reference types..

How to use java.net.URLConnection to fire and handle HTTP requests?

http://stackoverflow.com/questions/2793150/how-to-use-java-net-urlconnection-to-fire-and-handle-http-requests

1 HTTP response status You need a HttpURLConnection here. Cast it first if necessary. int status httpConnection.getResponseCode..

Abstract DAO pattern and Spring's “Proxy cannot be cast to …” problem!

http://stackoverflow.com/questions/3852564/abstract-dao-pattern-and-springs-proxy-cannot-be-cast-to-problem

cannot be cast to PersonDaoImpl exception java.lang.ClassCastException Proxy36 cannot be cast to foobar.PersonDaoImpl at foobar.PersonDaoTest.testAdditionalMethod.. when initializing Spring Caused by java.lang.ClassCastException java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType.. fulfills a contract but not the implementation details. Casting it to the original bean class breaks this loose coupling...

Equals method for objects

http://stackoverflow.com/questions/3950439/equals-method-for-objects

equals Object obj if obj instanceof Ghost return false Cast Object to Ghost so the comparison below will work Ghost other..

Instantiating inner class

http://stackoverflow.com/questions/4070716/instantiating-inner-class

getClass return false ok they are the same class. Cast rhs to HashPerson HashPerson other HashPerson rhs our test for..

When does a JPanel paint (or repaint) its child components?

http://stackoverflow.com/questions/5169647/when-does-a-jpanel-paint-or-repaint-its-child-components

false @Override public void paint Graphics g JComponent c Cast the Graphics instance to a Graphics2D instance. Graphics2D g2d..

Cast Int to enum in Java

http://stackoverflow.com/questions/5878952/cast-int-to-enum-in-java

Int to enum in Java What is the correct way to cast an Int..

Cast wrapper array to corresponding primitive array

http://stackoverflow.com/questions/6649100/cast-wrapper-array-to-corresponding-primitive-array

wrapper array to corresponding primitive array I use an ArrayList..

Cast via reflection and use of Class.cast() [duplicate]

http://stackoverflow.com/questions/8918550/cast-via-reflection-and-use-of-class-cast

via reflection and use of Class.cast duplicate Possible Duplicate..

Overriding the java equals() method quirk

http://stackoverflow.com/questions/185937/overriding-the-java-equals-method-quirk

you can either have equals TYPE var or equals Object o CAST var but assumed that since it was working it didn't matter too..

Resetting the time part of a timestamp in Java

http://stackoverflow.com/questions/227007/resetting-the-time-part-of-a-timestamp-in-java

the same but I don't know how to do this in Java. SELECT CAST FLOOR CAST GETDATE AS FLOAT AS DATETIME AS 'DateTimeAtMidnight'.. but I don't know how to do this in Java. SELECT CAST FLOOR CAST GETDATE AS FLOAT AS DATETIME AS 'DateTimeAtMidnight' java sql..

Datatype of SUM result in MySQL

http://stackoverflow.com/questions/323294/datatype-of-sum-result-in-mysql

will force MySQL to always tell it is an integer. SELECT CAST SUM price AS SIGNED FROM cakes WHERE ingredient 'marshmallows'..

handling DATETIME values 0000-00-00 00:00:00 in JDBC

http://stackoverflow.com/questions/782823/handling-datetime-values-0000-00-00-000000-in-jdbc

string not as an object. I got around this by doing SELECT CAST add_date AS CHAR as add_date which works but seems silly.....