methods

问题 I am new to Java and am trying to access method variables outside of the method, but it doesn't work. Code is below: public class MethodAccess { public static void minus() { int a=10; int b=15; } public static void main(String[] args) { //Here i want to access variable names a & b that is in minus() int c = b - a; } } 回答1: Because a and b are local variables. If you want to access to them in your main method, you need to modify your code. For example : public class methodacess { private

问题 I am new to Java and am trying to access method variables outside of the method, but it doesn't work. Code is below: public class MethodAccess { public static void minus() { int a=10; int b=15; } public static void main(String[] args) { //Here i want to access variable names a & b that is in minus() int c = b - a; } } 回答1: Because a and b are local variables. If you want to access to them in your main method, you need to modify your code. For example : public class methodacess { private

问题 I have a method that I would like to call when a 2 finger pan gesture is recognized. I have it setup and working ok, but the problem is that there is only about 15 times I need the method to be called (it filters through images), and by the time I've panned about an inch, the method has been called a hundred times and the images went by so fast I didn't know what was going on. What can I do to slow down my gesture recognizer? UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer

问题 I have a method that I would like to call when a 2 finger pan gesture is recognized. I have it setup and working ok, but the problem is that there is only about 15 times I need the method to be called (it filters through images), and by the time I've panned about an inch, the method has been called a hundred times and the images went by so fast I didn't know what was going on. What can I do to slow down my gesture recognizer? UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer

问题 I have the following warning when running a code analysis on my project (which is a Windows Phone 8.1 app): CA1303 Do not pass literals as localized parameters Method 'Common.TranslateError(String)' passes a literal string as parameter 'text' of a call to 'XDocument.Parse(String)'. Retrieve the following string(s) from a resource table instead. This is my method: Public Function TranslateError(ByVal exMessage As String) As XDocument Return XDocument.Parse("<Response><Exception><Message><" &

问题 I'm writing a custom API using Reflection to save Objects to file. I have the following class structure: @Constructor public XYZPOJO(@Key(key = "word") String word, @Key(key = "variations") ArrayList<String> varList) { this.word = word; this.varList = varList; } String word; ArrayList<String> varList = new ArrayList<String>(); @Key(key = "word") public String getWord() { return word; } @Key(key = "variations") public ArrayList<String> getVarList() { return varList; } When saving Object to

问题 Related to this question: Can I add a key named 'keys' to a hashtable without overriding the 'keys' member , I am actually often using the get_Keys() method as the recommended PSBase property will just move the problem. In other words, this method appears especially handy for an unknown list of directory keys in case of a solution like: Powershell Merge 2 lists Performance. The method works as expected (also on other collections, any PowerShell version and .Net Core): $Hash = @{Keys = 'MyKeys

问题 Let's say that package A defines and documents foo() and implements it for bar1 objects. In a new package B , I would like to expand this method and add its support for bar2 objects. Currently, I start by reexporting the method: #' @rdname foo #' @importFrom A foo #' @export A::foo And then went on extending its behaviour: #' @rdname foo #' @method foo bar2 #' @export foo.bar2 <- function(x, newparam = 3.14, ...){ dosomething(x, newparam) } Unfortunately, it seems like this creates a conflict

问题 Let's say that package A defines and documents foo() and implements it for bar1 objects. In a new package B , I would like to expand this method and add its support for bar2 objects. Currently, I start by reexporting the method: #' @rdname foo #' @importFrom A foo #' @export A::foo And then went on extending its behaviour: #' @rdname foo #' @method foo bar2 #' @export foo.bar2 <- function(x, newparam = 3.14, ...){ dosomething(x, newparam) } Unfortunately, it seems like this creates a conflict

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I have an assignment in which I have to perform operations on array in Java, I have to make separate functions of each operation, which I will write but I can not figure out how to invoke a method with array parametres. I usually program in c++ but this assignment is in java. If any of