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Using ZXing to create an Android barcode scanning app [duplicate]
....2.1.jar into the libs folder
Click on project: choose "properties" -> "Java Compiler" to change level to 1.7. Then click on "Android" change "Project build target" to android 4.4.2+, because using 1.7 requires compiling with Android 4.4
If "CameraConfigurationUtils.java" don't exist in "zxing-ma...
Spring MVC: Complex object as GET @RequestParam
...ror for request mentioned in answer:
"Failed to convert value of type 'java.lang.String[]' to required type
'java.lang.Long[]'; nested exception is
java.lang.NumberFormatException: For input string: \"353,234\""
The data class will work only for the following request params form:
http://l...
Set up adb on Mac OS X
...DK:
sudo port install android
Run the SDK manager:
sh /opt/local/share/java/android-sdk-macosx/tools/android
Uncheck everything but Android SDK Platform-tools (optional)
Install the packages, accepting licenses. Close the SDK Manager.
Add platform-tools to your path; in MacPorts, they're in ...
Format a date using the new date time API
...calTime, how do you perform formatting without running into this exception java.time.temporal.UnsupportedTemporalTypeException: Unsupported field: DayOfWeek
– samuel owino
Jan 11 at 23:11
...
What is a higher kinded type in Scala?
...ract over a type once, but that type itself cannot abstract over anything. Java 5 generics are first-order.
The first-order interpretation of the above characterizations of abstractions are:
A type constructor is a type that you can apply to proper type arguments to "construct" a proper type.
A val...
Generate fixed length Strings filled with whitespaces
...
Since Java 1.5 we can use the method java.lang.String.format(String, Object...) and use printf like format.
The format string "%1$15s" do the job. Where 1$ indicates the argument index, s indicates that the argument is a String an...
What is the exact problem with multiple inheritance?
...her multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
...
Why are data transfer objects (DTOs) an anti-pattern?
...slightly different format than a native business object.
I know this is a Java-oriented question, but in .NET languages anonymous types, serialization, and LINQ allow DTOs to be constructed on-the-fly, which reduces the setup and overhead of using them.
...
How to use JUnit and Hamcrest together?
...g.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
public class EmptyTest {
@Test
public void testIsEmpty() {
List myList = new ArrayList();
assertThat(myList, is(empty()));
}
}
...
Most efficient way to cast List to List
...st is a SubClass.
Generic collections do not behave the same as arrays in Java. Arrays are covariant; that is, it is allowed to do this:
SubClass[] subs = ...;
BaseClass[] bases = subs;
This is allowed, because the array "knows" the type of its elements. If someone attempts to store something th...