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Object Oriented Programming Articles
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What is isScriptingEnabled Attribute in JSP?
The isScriptingEnabled attribute determines if the scripting elements are allowed for use.The default value (true) enables scriptlets, expressions, and declarations. If the attribute's value is set to false, a translation-time error will be raised if the JSP uses any scriptlets, expressions (non-EL), or declarations.The attribute's value can be set to false if you want to restrict the usage of scriptlets, expressions (non-EL), or declarations −
Read MoreWhat the different types of JSTL tags are ?
The JSTL tags can be classified, according to their functions, into the following JSTL tag library groups that can be used when creating a JSP page −Core TagsFormatting tagsSQL tagsXML tagsJSTL Functions
Read MoreHow to insert data into a CachedRowSet in JDBC? Explain?
The CachedRowSet is the base implementation of disconnected row sets. It connects to the data source, reads data from it, disconnects with the data source and the processes the retrieved data, reconnects to the data source and writes the modifications.Creating a CachedRowSetYou can create a Cached RowSet object using the createCachedRowSet() method of the RowSetFactory.You can create a RowSetFactory object using the newfactory() method of the RowSetProvider method.Create a CachedRowSet object using the above mentioned methods as shown below −//Creating the RowSet object RowSetFactory factory = RowSetProvider.newFactory(); CachedRowSet rowSet = factory.createCachedRowSet();Connecting to the data sourceAfter creating a RowSet object you ...
Read MoreDifference between Synchronized ArrayList and CopyOnWriteArrayList in Java
Synchronized ArrayList and CopyOnWriteArrayList are useful for synchronizing the ArrayList. This is necessary for a multi-threaded environment to make sure thread safety is achieved.The differences between Synchronized ArrayList and CopyOnWriteArrayList are given as follows −Synchronized ArrayListCopyOnWriteArrayListSynchronized ArrayList is used to synchronize the ArrayList.CopyOnWriteArrayList is used to synchronize the ArrayList.The Java 1.2 version first introduced the Synchronized ArrayList.The Java 1.5 version first introduced the CopyOnWriteArrayList.The Synchronized ArrayList should be used when there are more write operations than reading operations in ArrayList.The CopyOnWriteArrayList should be used when there are more read operations than write operations in ArrayList.This iterator is a fail-fast iterator.This ...
Read MoreCreate Septet Tuple from another collection in Java
The fromCollection() method is used in JavaTuples to create Septet Tuple from another collection. We will see an example of creating a Septet Tuple using List collection.Let us first see what we need to work with JavaTuples. To work with Septet class in JavaTuples, you need to import the following package −import org.javatuples.Septet;Note − Steps to download and run JavaTuples program. If you are using Eclipse IDE to run Septet Class in JavaTuples, then Right Click Project ->Properties ->Java Build Path ->Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Septet; import java.util.*; public ...
Read MoreJavaTuples addAtX() method for Triplet class
The addAtX() method is used to add a value to the Triplet Tuple. The index can be set here with the X i.e. the place where the value gets added.Let us first see what we need to work with JavaTuples. To work with Triplet class in JavaTuples, you need to import the following package −import org.javatuples.Triplet;Here, we have used Quartet class also, therefore import the following −import org.javatuples.Quartet;Note − Steps to download and run JavaTuples program. If you are using Eclipse IDE to run Triplet Class in JavaTuples, then Right Click Project ->Properties ->Java Build Path ->Add External Jars and ...
Read MoreJava Tuple setAt0() method for Unit class
The setAt0() method is used to set the Unit value in JavaTuples and a copy with a new value at index 0.Let us first see what we need to work with JavaTuples. To work with the Unit class in JavaTuples, you need to import the following package −import org.javatuples.Unit;Note − Steps to download and run JavaTuples program. If you are using Eclipse IDE to run Unit Class in Java Tuples, then Right Click Project ->Properties ->Java Build Path ->Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Unit; public class Demo { public static void main(String[] ...
Read MoreGet a value from Unit Tuple class in Java
Use the getValueX() method to get a value from Unit Tuple class in Java at a particular index. For example, getValue0().Let us first see what we need to work with JavaTuples. To work with the Unit class in JavaTuples, you need to import the following package −import org.javatuples.Unit;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Unit Class in Java Tuples, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Unit; public class Demo { public ...
Read MoreThe contains() method of Java Unit Tuple
To search a value in Unit class in JavaTuples, use the contains() method.Let us first see what we need to work with JavaTuples. To work with the Unit class in JavaTuples, you need to import the following package −import org.javatuples.Unit;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Unit Class in Java Tuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Unit; public class Demo { public static void main(String[] args) { ...
Read MoreIterate through Quintet class in Java Tuples
You can iterate through Quintet class using a loop, like arrays in Java.Let us first see what we need to work with JavaTuples. To work with Quintet class in JavaTuples, you need to import the following package −import org.javatuples.Quintet;Note − Steps to download and run JavaTuples program If you are using Eclipse IDE to run Quintet Class in JavaTuples, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file.The following is an example −Exampleimport org.javatuples.Quintet; public class Demo { public static void main(String[] args) { ...
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