Class initialization problem

Initialization of a class means that a class file of the class is generated, right?

From[Javadiscussion group]2022-11-19 12:50:45 0 0 561

The meaning of String

Define String [] arr={...}; What does String mean here?

From[Javadiscussion group]2022-11-15 12:49:34 0 0 594

I encountered a problem when installing hyperlynx

java virtual machine launchererror: could not create the java virtual machine error: a fatal exception has occ...

From[Javadiscussion group]2022-10-12 14:09:39 0 0 730

jdk help document problem

I downloaded the jdk but don’t know how to open it. I can’t find the docs and api.

From[Javadiscussion group]2022-10-10 19:57:00 0 0 685

7-24 Why can the constructor be directly in the class and output directly to the console?

class Student() {public Student (){System.out.println("This is the constructor")}} class ConstructDe...

From[Javadiscussion group]2022-09-21 11:30:56 0 1 682

What happens when getByName(String host) passes the IP address and getHostName() returns the IP address?

what happened?

From[Javadiscussion group]2022-07-17 13:26:23 0 0 652

In Lesson 6-12, the teacher said that int can be directly converted to float. I didn't quite understand it.

System.out.println(sum(10.5f,20)); I forgot that knowledge point, why can int be directly converted to float?

From[Javadiscussion group]2022-07-14 19:02:29 0 1 770

Xiaofang's question about saving money

class WhileDemo2{ public static void main(String[] args){ double dayMoney=2.5; double daySum=0; int dayCoun...

From[Javadiscussion group]2022-06-30 22:41:39 0 2 1008

Why is an error reported?

What's wrong with this, please help me

From[Javadiscussion group]2022-04-11 22:54:10 0 0 926

Why can't I create a new text document in my bin folder?

Why can’t I create a new text document in my bin folder?

From[Javadiscussion group]2022-03-23 10:34:29 0 1 1408

Code encyclopedia

Are you self-taught in coding? Do you have any toolbox or something?

From[Javadiscussion group]2022-02-14 17:55:59 0 0 1058

My array is out of bounds, how to solve it?

The error message is as follows: Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBou...

From[Javadiscussion group]2022-01-02 20:35:43 0 1 1493

There seems to be an error in this article. I wrote the following code, which can be converted into trinocular

public class IfDemo2 { public static void main(String[] agrs) { int x=100; //使用IF演示 if(x%2==0

From[Javadiscussion group]2021-12-28 20:30:00 0 1 761

x=3 y=4 I don't understand

x<=y Why is true

From[Javadiscussion group]2021-09-27 19:41:24 0 2 1206

x=3 y=4 I don't understand

Why x<=y is true

From[Javadiscussion group]2021-09-27 19:34:48 0 1 1072