大约有 30,000 项符合查询结果（耗时：0.0437秒） [XML]
JVM option -Xss - What does it do exactly?
...
Each thread in a Java application has its own stack. The stack is used to hold return addresses, function/method call arguments, etc. So if a thread tends to process large structures via recursive algorithms, it may need a large stack for all...
Java generics - why is “extends T” allowed but not “implements T”?
I wonder if there is a special reason in Java for using always " extends " rather than " implements " for defining bounds of typeparameters.
...
Regular expression: find spaces (tabs/space) but not newlines
...
Good point. Java's \h (introduced in Java 8) does include \u3000, but \s does not, unless you set UNICODE_CHARACTER_CLASS mode (introduced in Java 7).
– Alan Moore
Apr 19 '16 at 21:46
...
How to make a countdown timer in Android?
...
MainActivity.java
package com.zeustechnocrats.countdown;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.LinearLayout;
import android....
How to convert number to words in java
... because of position
This is the code from the website:
English
import java.text.DecimalFormat;
public class EnglishNumberToWords {
private static final String[] tensNames = {
"",
" ten",
" twenty",
" thirty",
" forty",
" fifty",
" sixty",
" seventy",
" ei...
Comparator.reversed() does not compile using lambda
... be filed and dealt with accordingly. Otherwise it is an area in which the Java language should be improved. Which is it?
– Garret Wilson
May 11 '17 at 19:44
8
...
How to cast an object in Objective-C
...
Or "Remember, Objective-C works like Java, just remember to add asterisks to variables that point to Obj-C objects."
– Dan Rosenstark
Jun 14 '10 at 3:43
...
Why not use Double or Float to represent currency?
...ent the base 10 multiples that we use for money. This issue isn't just for Java, it's for any programming language that uses base 2 floating-point types.
In base 10, you can write 10.25 as 1025 * 10-2 (an integer times a power of 10). IEEE-754 floating-point numbers are different, but a very simple...
Are Java static initializers thread safe?
...
Yes, Java static initializers are thread safe (use your first option).
However, if you want to ensure that the code is executed exactly once you need to make sure that the class is only loaded by a single class-loader. Static ini...
How to change a module variable from another module?
...erence to that symbol.
In other words, importing is NOT like an import in JAVA, external declaration in C/C++ or even a use clause in PERL.
Rather, the following statement in Python:
from some_other_module import a as x
is more like the following code in K&R C:
extern int a; /* import from...