Java
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How to use java to move the mouse smoothly across the screen?
There is a MouseMove () method that causes the pointer to jump to that position I want to be able to move the mouse sm…… -
Java – Maven compilation does not create class files
I have a 3-module Maven project with the parent POM When I run Maven clean compile test from the parent process It fai…… -
Java – get random numbers from ArrayList?
ArrayList<Integer> lista = new ArrayList<Integer>(); ArrayList<Integer> lista = new ArrayList<I…… -
Java – what is the purpose of using aslist?
I just want to know the benefits and purpose of the aslist () method in arrays It returns a fixed size list supported …… -
java – @Override on Implementation
Will you put comments in the implementation class methods? Is it useful? If you input wrong or no input, it is a compi…… -
What is the scope of Java variables in the block?
See English answers > why does Java not have block scoped variable declarations? 6 void foo(){ int a = 0; f…… -
Java Native array length
I have a 2D binary array in Java. It is basically a value table. I want to know how many rows it has It declares elsew…… -
Thread contention in Java
I want to know the following procedure If I call new readerthread() Start() it works normally, but if I call new reade…… -
Java – use thread. Java in my main code currentThread. Is sleep () dangerous?
In my code I'm using Thread.currentThread().sleep(sleepTime); In the main (non thread object) part of the code It seem…… -
Java – Android studio autocomplete
I just switched to Android studio, and even with a few errors, I think it's much better than eclipse However, somethin…… -
Java: generic filter mapping function
I'm trying to develop a general function to filter maps My code so far is: public static Map<?,?> filterAttrs(Ma…… -
Java time implementation
package timeToys; package timeToys; import java.util.regex.Pattern; ** * A DayTime is an immutable object that sto…… -
Java multi-level inheritance – protected instance variables in level 1 classes
I have a problem with multi - level inheritance in Java All three classes are in the same package I have class A: publ…… -
Java – what is better shallow or deep cloning?
I'm a little confused about object cloning in Java What is the main difference between shallow cloning and deep clonin…… -
Java – what is system in
Consider this scanner input example Scanner user_input = new Scanner( system.in ); The scanner is class user_ Input is…… -
Java – reverse loop for array countdown
I received an error Exception in thread "main" java.lang.Arrayindexoutofboundsexception: 10 at Reverse.main(Revers…… -
What does a java thread do after running?
In a game, I'm using many instances of a thread, and it won't track them clientThread cT = new clientThread(socket); n…… -
Java – how to add a second table to the database in SQLite?
I have a database exam guide. I have created a table_ Subject and now private static final String DATABASE_CREATE = "c…… -
After uninstalling Java and reinstalling it to a new location, eclipse will not start
I reinstalled the JDK tonight because there is embedded space in the program file... Now eclipse will explode immediat…… -
Java – what is the purpose of the access modifier
Do you need access modifiers in your programming language? Solution See: encapsulation (Wikipedia) Of course, you can …… -
Java of jar file
I created a Java application and packaged it into a jar file on the windows platform Now I want to deploy the jar file…… -
Java – why mockito returns_ Default does not return the default string?
In the following example (mockito 1.10.19): MyClass myClass = Mockito.mock(MyClass .class,RETURNS_DEFAULTS); Strin…… -
How do I access memory locations in Java?
Can we access memory locations in Java directly or indirectly? If we try to print the object, it will print the hash c…… -
Java inheritance problem
Suppose I extend a class and override the methods in that class What is wrong with calling rewriting from my new class…… -
Using threads in swing GUI in Java
I use the following code to replace a jlabel every 0.5 seconds, using the same sentence, but using another point Runna…… -
Java – syntax error: Insert ‘}’ to complete the block
My code keeps going wrong I'm making an application to generate quotes Who can help me with this? Whatever I try, I ge…… -
Does the java compiler pre calculate the sum of text?
int i = 10 + 20; int i = 10 + 20; Is it true that the compiler will process this code, add 10 and 20 bytes, and the co…… -
Java – can you request multiple types at once?
Basically, I want to do this: public interface A { void a(); } public interface B { void b(); } public class S…… -
Java – a space saving data structure used to store and find a large number of (evenly distributed) integers
I need to find and find a million evenly distributed integers in memory Background: the above integer problem is a sim…… -
Repetitive sequences in Java / Python / Mathematica
How to write the following statements in a given language? a(0) = 1 a_(n+1) = 1 - 1 / ( a_n + 3) When a_ When n – >…… -
Java string Split() deletes trailing empty entries
I'm trying to parse some pipe delimited records I have this Code: public class Test { public static void main(Stri…… -
Check the existence of Java in the file
I want to create a text file, but if the file already exists, I should not create a new file, but attach the text to t……