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Spring MVC: How to perform validation?
...CustomObject {
}
Example of generic fields equality:
import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Documented;
import java.lang.annotatio...
How do different retention policies affect my annotations?
... anyone explain in a clear way the practical differences between the java.lang.annotation.RetentionPolicy constants SOURCE , CLASS , and RUNTIME ?
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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
...nswered May 6 '15 at 16:32
Evan LangloisEvan Langlois
2,60511 gold badge1515 silver badges1616 bronze badges
...
Android 4.1: How to check notifications are disabled for the application?
... int uid = appInfo.Uid;
try {
var appOpsClass = Java.Lang.Class.ForName("android.app.AppOpsManager");
var checkOpNoThrowMethod = appOpsClass.GetMethod(CHECK_OP_NO_THROW,Java.Lang.Integer.Type,Java.Lang.Integer.Type,new Java.Lang.String().Class);//need to add String....
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...t this implementation technique is not required by the Java™ programming language.)
So if you are using hashCode() to find out if it is a unique object in memory that isn't a good way to do it.
System.identityHashCode does the following:
Returns the same hash code for the given object as wo...
Calling clojure from java
... for "calling clojure from java" are outdated and recommend using clojure.lang.RT to compile the source code. Could you help with a clear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the classpath?
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What to do on TransactionTooLargeException
...or clarity, is the same as in the question:
E/AndroidRuntime(28182): java.lang.RuntimeException: Adding window failed
..
E/AndroidRuntime(28182): Caused by: android.os.TransactionTooLargeException
Delving into the source code of android one finds these lines:
frameworks/base/core/jni/android_uti...
How can I check whether an array is null / empty?
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Don't forget about: org.apache.commons.lang3.ArrayUtils.isEmpty(k)
– aholub7x
Sep 21 '12 at 13:29
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What is the equivalent of the C++ Pair in Java?
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In a thread on comp.lang.java.help, Hunter Gratzner gives some arguments against the presence of a Pair construct in Java. The main argument is that a class Pair doesn't convey any semantics about the relationship between the two values (how do ...
A KeyValuePair in Java [duplicate]
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This isn't a universally-available language feature and will require more than a standard JRE runtime. Pair comes from javafx.util, which introduces a dependency on JavaFX, such as OracleJDK, OpenJDK or OpenJFX. If you're using one of these Java runtimes then ...