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.../DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="gb2312">
<head>
<meta http-equiv=Content-Type content="text/html; charset=gb2312"/>
<style type="text/css">
/***************************************** 各游览器兼容CSS ******************************************...
Getting the array length of a 2D array in Java
... name of it is - object initialization? inline initialization? one of our Java Gurus will know
– NG.
Oct 22 '10 at 19:59
8
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Comparing Java enum members: == or equals()?
I know that Java enums are compiled to classes with private constructors and a bunch of public static members. When comparing two members of a given enum, I've always used .equals() , e.g.
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Eclipse: enable assertions
...nd then to the menu item Run Configurations.
In the left panel, go to Java Application, and then go to Assertions.
In the right panel, choose the tab Arguments.
Under the field for VM arguments, type -ea to enable assertions.
Click on the Apply and then Run button.
To globally set it a...
Difference between Statement and PreparedStatement
... + "'");
preparedStatement.executeUpdate();
Eases setting of non-standard Java objects in a SQL string, e.g. Date, Time, Timestamp, BigDecimal, InputStream (Blob) and Reader (Clob). On most of those types you can't "just" do a toString() as you would do in a simple Statement. You could even refacto...
Android-java- How to sort a list of objects by a certain value within the object
... When should a class be Comparable and/or Comparator?
Try this -
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class TestSort {
public static void main(String args[]){
ToSort toSort1 = new ToSort(new Float(3), "3");
ToSort toSort2 =...
How to comment a block in Eclipse?
...le "//" comments and Ctrl-Shift-/ to toggle "/* */" comments. At least for Java, anyway - other tooling may have different shortcuts.
Ctrl-\ will remove a block of either comment, but won't add comments.
Note: As for Eclipse CDT 4.4.2, Ctrl-Shift-/ will not uncomment a "/* */" block comment. Use ...
String.format() to format double in java
...alFormat.setRoundingMode(RoundingMode.UP);
Here are the imports:
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;
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Is Java RegEx case-insensitive?
In Java, when doing a replaceAll to look for a regex pattern like:
5 Answers
5
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Is it possible to view bytecode of Class file? [duplicate]
Java source code is compiled into bytecode, which is actually in the class file. Is it possible to view bytecode of a compiled class?
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