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How can I concatenate two arrays in Java?
I need to concatenate two String arrays in Java.
61 Answers
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Where is array's length property defined?
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Arrays are special objects in java, they have a simple attribute named length which is final.
There is no "class definition" of an array (you can't find it in any .class file), they're a part of the language itself.
10.7. Array Members
The membe...
Can I use Class.newInstance() with constructor arguments?
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Seems like the answer is "no" for Java 1.1
– Jim
Jul 28 '16 at 11:13
I have p...
Why is there no String.Empty in Java?
...w about this string from back over here". I'm admittedly no expert in the java compiler, but how could this NOT be the case? And I would think skipping that check would result in a minuscule improvement in compile times.
– Tom Tresansky
Aug 10 '10 at 15:52
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How to check programmatically if an application is installed or not in Android?
... No doubt your post is really helpful , but i am getting a exception "java.lang.RuntimeException: Adding window failed" and " E/AndroidRuntime(7554): Caused by: android.os.TransactionTooLargeException 05-14 11:37:25.305: E/AndroidRuntime(7554): at android.os.BinderProxy.transact(Native Metho...
What is the difference between JDK and JRE?
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The JRE is the Java Runtime Environment. It is a package of everything necessary to run a compiled Java program, including the Java Virtual Machine (JVM), the Java Class Library, the java command, and other infrastructure. However, it canno...
How to pass an object from one activity to another on Android
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Serializable is a standard Java interface. You simply mark a class Serializable by implenting the interface, and Java will automatically serialize it in certain situations. Parcelable is an Android specific interface where you implement the serializa...
Regexp Java for password validation
I'm creating a regexp for password validation to be used in a Java application as a configuration parameter.
15 Answers
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What is the difference between an int and an Integer in Java and C#?
... of programmer knowing the difference between an int and an Integer in Java/C# (Object-Oriented Programming Languages).
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Copying text to the clipboard using Java
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This works for me and is quite simple:
Import these:
import java.awt.datatransfer.StringSelection;
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
And then put this snippet of code wherever you'd like to alter the clipboard:
String myString = "This text will be cop...