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How to format Joda-Time DateTime to only mm/dd/yyyy?
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Note that in JAVA SE 8 a new java.time (JSR-310) package was introduced. This replaces Joda time, Joda users are advised to migrate. For the JAVA SE ≥ 8 way of formatting date and time, see below.
Joda time
Create a DateTimeFormatter us...
How to start two threads at “exactly” the same time
... Well, whatever it is, this is the answer I would have posted had I been a Java guru.
– ChaosPandion
Jul 31 '10 at 3:55
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show 9 more commen...
Send an Array with an HTTP Get
...ally, when the target server uses a strong typed programming language like Java (Servlet), then you can just send them as multiple parameters with the same name. The API usually offers a dedicated method to obtain multiple parameter values as an array.
foo=value1&foo=value2&foo=value3
S...
How to loop through a HashMap in JSP?
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Just the same way as you would do in normal Java code.
for (Map.Entry<String, String> entry : countries.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
// ...
}
However, scriptlets (raw Java code in JSP files, those <%...
Is it possible to use the instanceof operator in a switch statement?
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Just in case if someone will read it:
The BEST solution in java is :
public enum Action {
a{
void doAction(...){
// some code
}
},
b{
void doAction(...){
// some code
}
},
c{
void doAction(...)...
Facebook Android Generate Key Hash
...SYSTEM.android) and paste into JDK bin Folder in my case (C:\Program Files\Java\jdk1.6.0_05\bin)
5) Open command prompt and give the path of JDK Bin folder in my case (C:\Program Files\Java\jdk1.6.0_05\bin).
6) Copy the following code and hit enter
keytool -exportcert -alias androiddebugkey -k...
How do I format a number in Java?
How do I format a number in Java?
What are the "Best Practices"?
9 Answers
9
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@Basic(optional = false) vs @Column(nullable = false) in JPA
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@Xie Jilei: From book: Java persistence with hibernate 2007, p. 179: @Basic(optional = false) @Column(nullable = false) The @Basic annotation marks the property as not optional on the Java object level. The second setting, nullable = false on the...
Can an int be null in Java?
Can an int be null in Java?
15 Answers
15
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Java 8 List into Map
I want to translate a List of objects into a Map using Java 8's streams and lambdas.
21 Answers
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