Java
-
How to return values from methods that contain arrays in parameters in Java?
I have this code, but it doesn't work! public class Trial { public static void main (String [] args) { …… -
Java – generics – what am I missing or what’s the point?
I have the following code: public class AClass<X extends AnInterface> implements AnotherInterface { public …… -
How to execute “javac and Java commands” from a java program?
Is there any way to execute "javac and Java commands" from Java programs? If so, please help me Solution Like runtime …… -
Java – is there any way to know the type of object?
The scheme is that I pass an object as a parameter in the method, and I want to perform the operation according to the…… -
Java – the code is compiled in eclipse, but not from the command prompt
The following code has no problem compiling in eclipse using JDK7 (I use update 10, but it should be used with any ver…… -
How to select random numbers in a range, but weight them to a part of the range? (in Java)
I want to choose a random number from a series of numbers, but I want to weight part of the range For example: >Sel…… -
Java – when using “. Get (0)” in an empty list, I get an out of bounds exception instead of null?
So in my homework, for my error checking test, I made a list < someobject > and I got an indexoutofboundsexcepti…… -
Concurrent modification exception in Java
See English answers > repeating through a collection, avoiding concurrent modificationexception when removing objec…… -
Syntax sorting in Java
The following two syntax sequences are valid in Java Why are both allowed and is there a preferred syntax order? priva…… -
Java regex – how to replace patterns or how to replace patterns
I have a pile of HTML files In these files, I need to correct the SRC attribute of the IMG tag <img alt="" src="./S…… -
Java – objects to list – > Why do I create a new object?
I want to know why: Data type library public class Bank { String Blz; String Name; public String getBlz() { …… -
Java – declaring class abstraction is a bad design because it has only static members?
My project has a class for loading external resources (i.e. images and audio files) This class has only a few members:…… -
Java file path best practices
If the operating system is windows, which of the following is the best way to write in Java? 1) String f = "some\\path…… -
Sort the object list based on different data members in Java
I have this course: public class Friend { private String name; private String location; private String temp; private …… -
Garbage characters when reading text files in Java
I have a Java call windows bat file that performs some processing and generates an output file if ( filexists("output.…… -
Java – find the largest prime number in 600851475143?
I tried from http://projecteuler.net Problem solving 3 But when I run the program, it doesn't print out public class p…… -
Java – create viewholder final in custom listview adapter Android
I have a listview with such a custom adapter @Override public View getView(int position,View convertView,ViewGroup par…… -
Triangle numbers in Java
I'm new to Java. Now I want to learn better loops I did some examples, but I don't know how to make a triangle that lo…… -
Java – how do I find a value from the HashMap closest to a specific number?
Hi, I have a HashMap < < string, double >, and a function that returns a double value called the answer I wan…… -
java – Math. Invalid cos
This point of my program should use the cosine rule to calculate bottomangle public double bottomAngle() { to…… -
Java – find the nth prime
I wrote the following code to find the nth prime Can this improve time complexity? Description: ArrayList arr stores c…… -
Java – split the file into four parts
I want to divide a file (suppose an MP3) into four parts I tried this code But only file1 Mp3 works normally I can't p…… -
Java – the program does not display the desired string representation of the object
I created a program in Java that should return all orders to the provider This is the procedure: package sakila.ui; i…… -
Java – why can’t the content of my JFrame be displayed correctly?
In order to reduce the code, I am taking out the code irrelevant to the problem, such as addactionlistener(); wait My …… -
Date in constructor in Java
I have a constructor class: ... Date d1; Date d2; public DateClass(Date d1,Date d2) { this.d1 = d1; this.d2 = d2…… -
VHDL std_ logic_ Vector index and “downto”
I want to set STD separately_ logic_ Vector to easily annotate individual bits or groups of bits This is what I have: …… -
Java – extract relative paths from absolute paths
This is a seemingly simple question, but I can't do it in a clean way I have a file path as follows: /This / is / abso…… -
Java – read multiple scanner inputs
What I want to do is have multiple inputs with different variables Each variable is part of a different equation I'm l…… -
Java – place JMenu on the MAC menu bar
I am using swing JMenu to create a Java application on Mac I want to use the menu bar at the top of the screen, but it…… -
Java – why is the value of “thread. Currentthread(). Isinterrupted()” false after capturing “interruptedexception”?
As a title public static void main(String[] args) throws InterruptedException { Thread thread = new Thread(new Ru…… -
Is there a Java equivalent of the Java sched module?
Raymond Hettinger released a snippet that uses the sched module provided in the standard Python library to call functi…… -
Java – get bufferedimage from and OutputStream
I have a function, int readfull (filehandle, OutputStream out), which reads the entire file from the ssh server and st……