method-call

Is it better to call a method on a variable or chain it to the constructor?

由 自作多情 提交于 2019-12-13 10:32:11
问题 There are examples of calling such methods on any class. I.e.: SampleClass sc=new SampleClass(); sc.someMethod(); Or is it better to use new SampleClass().someMethod(); Please, explain in detail. 回答1: Both options are as good, but first one is better... If you use SampleClass sc=new SampleClass(); sc.someMethod(); You can call other methods of this class using same object of class. If you use new SampleClass().someMethod(); You require another object to call other method of this class. Other

Mockito: verifying method call from internal anonymous class

由 为君一笑 提交于 2019-12-11 07:29:16
问题 I have a class under test which contains a method which has an inner anonymous class. One of the methods in the anonymous class calls a method from the class under test, but Mockito doesn't seem to realize this. public class ClassUnderTest { Dependency dependency; public ClassUnderTest(Dependency d) { dependency = d; } public void method() { dependency.returnsObservable().observeOn(AndroidSchedulers.mainThread()) .subscribeOn(Schedulers.io()).subscribe(new Observer<SupportClass> { /* Other

C++ virtual (sealed) function

由 自作多情 提交于 2019-12-10 17:36:35
问题 I am using classes from a dll in my C++ project. All is working fine, until... When trying to call a certain method (listed in the object browser), I am getting an error that this method is not a member of the namespace. Upon investigation, I noticed that this method is listed as "virtual void x() sealed". Is there a way to make a call to such a function? 回答1: For future reference, I just received a response from the enterprise library support team. They posted a link to the following:

Java calling method and using ternary operator and assign in the parameters?

由 ≯℡__Kan透↙ 提交于 2019-12-10 15:59:37
问题 I was reviewing some code and I came across this: public static doSomething(String myString, String myString2) { //Stuff } public static doAnotherThing(String myString) { return doSomething(myString = myString != null ? myString.toLowerCase(): myString, null) } How is this working exactly?, I know the .toLowerCase resulting string is assigned to myString (yes I know bad practice since you are not supposed to reassign method parameters in fact they should be final), but I am not quite sure how

Call class method with argument from another class method

由 為{幸葍}努か 提交于 2019-12-09 03:49:27
问题 In my code file MyItemVC.swift I have defined the following class and method: class MyItemVC: UIViewController, UITextViewDelegate { var timer = NSTimer() func cycleTimer(toggleOn: Bool) { if toggleOn == true { // Timer calls the replaceItem method every 3 seconds timer = NSTimer.scheduledTimerWithTimeInterval(3, target: self, selector: Selector("replaceItem"), userInfo: nil, repeats: true) } else { timer.invalidate() // stop the timer } } } Elsewhere in this class, I call cycleTimer(true) to

How to call java method in JSTL? [duplicate]

由 廉价感情. 提交于 2019-12-07 14:23:03
问题 This question already has answers here : How to call parameterized method from JSP using JSTL/EL (4 answers) Closed 3 years ago . This might be duplicate question. I just want to call method which is not getter or setter method eg. makeCall(someObj,"stringvalue") of xyz class. Java Class Class XYZ{ public String makeCall("someValue1","stringValue2"){ //some logic here } } JSTL <jsp:userBean id="xyz" class="com.XYZ"/> ${xyz.makeCall("hello","Friend")} 回答1: Simply create an object of the class

Java compiler optimization for repeated method calls?

由 不问归期 提交于 2019-12-07 01:42:35
问题 Does the java compiler (the default javac that comes in JDK1.6.0_21) optimize code to prevent the same method from being called with the same arguments over and over? If I wrote this code: public class FooBar { public static void main(String[] args) { foo(bar); foo(bar); foo(bar); } } Would the method foo(bar) only run once? If so, is there any way to prevent this optimization? (I'm trying to compare runtime for two algos, one iterative and one comparative, and I want to call them a bunch of

How to pass arguments to a method loaded from a static library in CPP

由 Deadly 提交于 2019-12-06 11:48:53
问题 I'm trying to write a program to use a static library of a C++ code into another C++ code. The first C++ code is hello.cpp : #include <iostream> #include <string.h> using namespace std; extern "C" void say_hello(const char* name) { cout << "Hello " << name << "!\n"; } int main(){ return 0; } The I made a static library from this code, hello.a , using this command: g++ -o hello.a -static -fPIC hello.cpp -ldl Here's the second C++ code to use the library, say_hello.cpp : #include <iostream>

How to call java method in JSTL? [duplicate]

由 孤街浪徒 提交于 2019-12-05 21:43:06
This question already has an answer here: How to call parameterized method from JSP using JSTL/EL 4 answers This might be duplicate question. I just want to call method which is not getter or setter method eg. makeCall(someObj,"stringvalue") of xyz class. Java Class Class XYZ{ public String makeCall("someValue1","stringValue2"){ //some logic here } } JSTL <jsp:userBean id="xyz" class="com.XYZ"/> ${xyz.makeCall("hello","Friend")} Simply create an object of the class using <jsp:useBean> and call the method using JavaServer Pages Standard Tag Library or Expression Language that is more easy to

Java compiler optimization for repeated method calls?

由 孤街醉人 提交于 2019-12-05 06:16:34
Does the java compiler (the default javac that comes in JDK1.6.0_21) optimize code to prevent the same method from being called with the same arguments over and over? If I wrote this code: public class FooBar { public static void main(String[] args) { foo(bar); foo(bar); foo(bar); } } Would the method foo(bar) only run once? If so, is there any way to prevent this optimization? (I'm trying to compare runtime for two algos, one iterative and one comparative, and I want to call them a bunch of times to get a representative sample) Any insight would be much appreciated; I took this problem to the
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