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Explain java.lang.string library in java?
Strings are objects. Specifically they're instances of the class java.lang.String. This class has several methods which are useful for working along with strings.
java.lang.String
Internally Java Strings are arrays of Unicode characters. For instance the String "Hello" is a five element array. Like arrays, Strings starts counting at 0. Therefore in the String "Hello" 'H' is character 0, 'e' is character 1, and so on.
"Hello"
'H'
'e'
0
1
2
3
4
H
e
l
o
What is Externalizable interface? Externalizable is an interface which have two methods readExternal and writeExternal. These methods give you a control over the serialization
Object-to-Relational (O/R) mapping : There are various ways to persist data and the persistence layer is one of the most important layers in any application development. O/R ma
An ActionForm is a JavaBean that extends org.apache.struts.action.ActionForm. ActionForm handles the session state for web application and the ActionForm object is automatically p
Finding an Applet's Size When running inside a web browser the size of an applet is set through the height and width attributes and cannot be changed by the applet. Several app
What is constructor chaining and how is it achieved in Java? A child object constructor always first requires to construct its parent (which in turn calls its parent constructo
Give the example of mixing data type in java? Mixing Data Types Order can form a difference while data types are mixed. For example, 1 / 2 * 3.5 = 0.0 3.5 * 1 / 2 = 1.75 3.5 /
Explain The Applet in java? The reason people are excited about Java as more than just another OOP language is because it allows them to write interactive applets on the web.
What does it mean that a method or class is abstract? An abstract class cannot be instantiated. Abstract methods may only be included in abstract classes. However, an abstract
Hey, i have a project on java can you help me
Relate java with JVM Java performance gets better each year as JVM gets smarter. This works, since making JVM smarter doesn't require any great change to the java language, sou
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