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The include directive is used to include a file during the translation phase. This directive tells the container to merge the content of other external files with the current JSP during the translation phase. You may code the include directives anywhere in your JSP page.The general usage form of this directive is as follows −
The tag is used to loop over nodes in an XML document.AttributeThe tag has the following attributes −AttributeDescriptionRequiredDefaultselectThe XPath expression to be evaluatedYesNonevarName of the variable to store the current item for each loopNoNonebeginThe start index for the iterationNoNoneendThe end index for the iterationNoNonestepThe size of the index increment while iterating over the collectionNoNonevarStatusThe name of the variable in which the status of the iteration is storedNoNoneExampleThe following example shows the use of the tag − JSTL x:if Tags Books Info: ... Read More
The LocalTime can be formatted with the specified formatter using the format() method in the LocalTime class in Java. This method requires a single parameter i.e. the LocalTime object to be formatted and it returns the formatted LocalTime with the specified formatter.A program that demonstrates this is given as follows:Example Live Demoimport java.util.*; import java.time.*; import java.time.format.DateTimeFormatter; public class Main { public static void main(String[] args) { LocalTime lt = LocalTime.parse("14:30:47"); System.out.println("The LocalTime is: " + lt); DateTimeFormatter dtf = DateTimeFormatter.ISO_TIME; System.out.println("The formatted LocalTime is: " + dtf.format(lt)); ... Read More
To fetch the value from an Octet Tuple, use the getValueX() method. Here X is the index for which you want the value.For example, to fetch the 5th element i.e. 4th index, use the getValueX() method as −getValue(4);Let us first see what we need to work with JavaTuples. To work with Octet class in JavaTuples, you need to import the following package −import org.javatuples.Octet;Note − Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project -> Properties -> Java Build Path -> Add External Jars and upload the downloaded JavaTuples jar file. ... Read More
To iterate through the KeyValue tuple in Java, use the Iterable and loop it through using the for loop. Let us first see what we need to work with JavaTuples. To work with KeyValue class in JavaTuples, you need to import the following package:import org.javatuples.KeyValue;Note: Download JavaTuples Jar library to run JavaTuples program. If you are using Eclipse IDE, then Right Click Project → Properties → Java Build Path → Add External Jars and upload the downloaded JavaTuples jar file. Refer the below guide for all the steps to run JavaTuples:Steps: How to run JavaTuples program in EclipseThe following is ... Read More
Set is an abstract data type in which each element has to be unique because the value of the element identifies it. The value of the element cannot be modified once it is added to the set, but it is possible to remove and add the modified value of that element.A Map is an associative container that store elements in a mapped fashion. Each element has a key value and a mapped value. No two mapped values can have the same key values.So, it is clear from above that, set contains the only key, and map contains a value with ... Read More
This example demonstrate about Uninstall APKs programmaticallyStep 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project.Step 2 − Add the following code to res/layout/activity_main.xml. In the above code, we have taken text view.Step 3 − Add the following code to src/MainActivity.java import android.app.Activity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { TextView text; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ... Read More
You can use LEFT() from MySQL to display some character from the entire value in MySQL. Following is the syntax:select left(yourColumnName ,200 ) AS anyAliasName from yourTableName;Let us first create a table:mysql> create table DemoTable (Paragraph longtext); Query OK, 0 rows affected (0.71 sec)Following is the query to insert records in the table using insert command:mysql> insert into DemoTable values('Introduction to Java, Introduction to C, Introduction to C++, Introduction to Spring, Introduction to Hibernate, Introduction to Python, Introduction to MySQL, Introduction to MongoDB, Introduction to SQL Server, Introduction to ASP.net, Introduction to JSF'); Query OK, 1 row affected (0.13 sec)Following ... Read More
A new IntBuffer with the content as a shared subsequence of the original IntBuffer can be created using the method slice() in the class java.nio.IntBuffer. This method returns the new IntBuffer that is read-only if the original buffer is read-only and direct if the original buffer is direct.A program that demonstrates this is given as follows −Example Live Demoimport java.nio.*; import java.util.*; public class Demo { public static void main(String[] args) { int n = 5; try { IntBuffer buffer1 = IntBuffer.allocate(n); buffer1.put(3); ... Read More
A key pair can be generated using the genKeyPair() method in the class java.security.KeyPairGenerator. This method requires no parameters and it returns the key pair that is generated.A program that demonstrates this is given as follows −Example Live Demoimport java.security.*; import java.util.*; public class Demo { public static void main(String[] argv) throws Exception { try { KeyPairGenerator kpGenerator = KeyPairGenerator.getInstance("RSA"); KeyPair keyPair = kpGenerator.genKeyPair(); System.out.println(keyPair); } catch (NoSuchAlgorithmException e) { System.out.println("Error!!! NoSuchAlgorithmException"); ... Read More