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Object Oriented Programming Articles
Page 567 of 589
Iterate through LabelValue Tuple in Java
To iterate through the LabelValue tuple value, use a simple for loop just like what we do in other collections. Let us first see what we need to work with JavaTuples. To work with LabelValue class in JavaTuples, you need to import the following package −import org.javatuples.LabelValue;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 ...
Read MoreCreate KeyValue Tuple from an array in Java
To create KeyValue tuple from an array in Java, you need to use the fromArray() method. Let us first see what we need to work with JavaTuples. To work with KeyValue class in JavaTuples, you need to import the following packageimport 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 JavaTuplesSteps − How to run JavaTuples program in EclipseThe following is an example ...
Read MoreConvert IntStream to String in Java
If you have IntStream with ASCII values, then easily convert it to string using the below given example.For IntStream class, import the following packageimport java.util.stream.IntStream;Let’s say the following is our IntStreamIntStream stream = "Example".chars();Now, convert the IntStream to stringString str = stream.collect(StringBuilder::new, StringBuilder::appendCodePoint, StringBuilder::append).toString();The following is an example to convert IntStream to String in JavaExampleimport java.util.stream.IntStream; class Demo { public static void main(String[] args) { IntStream stream = "Example".chars(); System.out.println("The ASCII values..."); String str = stream.collect(StringBuilder::new, StringBuilder::appendCodePoint, StringBuilder::append).toString(); System.out.println("The ...
Read MoreThe addAtX() method of the Octet Tuple in Java
The addAtX() method is used in Octet Tuple to add value. Here, X is the index wherein you need to add the value i.e. to add value at index 0, use the addAt0() and value as a parameter. Let us first see what we need to work with JavaTuples. To work with Octet class in JavaTuples, you need to import the following packageimport 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 MoreLongStream mapToObj() method in Java
The LongStream mapToObj() method is used in Java to return an object-valued Stream consisting of the results of applying the given function to the elements of this stream.The syntax is as follows: StreammapToObj(LongFunction
Read MoreLongStream mapToDouble() method in Java
The mapToDouble() method returns a DoubleStream consisting of the results of applying the given function to the elements of this stream.The syntax is as follows:DoubleStream mapToDouble(LongToDoubleFunction mapper)The parameter mapper is a stateless function to apply to each element.To use the LongStream class in Java, import the following package:import java.util.stream.LongStream;The following is an example to implement LongStream mapToDouble() method in JavaExampleimport java.util.stream.LongStream; import java.util.stream.DoubleStream; public class Demo { public static void main(String[] args) { LongStream longStream = LongStream.of(5000L, 12000L, 15000L, 20000L, 25000L); DoubleStream s = longStream.mapToDouble(a → (double)a); System.out.println("Elements of DoubleStream..."); ...
Read MoreCreate KeyValue Tuple using with() method in Java
To create a KeyValue tuple in Java, you can use the with() method. 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 an example to create KeyValue tuple using ...
Read MoreGenerate Infinite Stream of Integers in Java using IntStream.generate()
You can also generate Infinite Stream of Integers in Java with IntStream.generate() method. Here, we have used the Random class to get the list of random integers:Random r = new Random();After that use IntStream.generate() and the nextInt() method gets the next random integer:IntStream.generate(r::nextInt)The following is an example displaying how to generate Infinite Stream of Integers with IntStream.generate() in Java:import java.util.stream.*; import java.util.*; public class Main { public static void main(String[] args) { Random r = new Random(); IntStream.generate(r::nextInt).forEach(System.out::println); } }Here is the output:565757777 3535363636 9879879879 -686549988
Read MoreLongStream map() method in Java
The map() method of the LongStream class in Java returns a stream consisting of the results of applying the given function to the elements of this stream.The syntax is as follows:LongStream map(LongUnaryOperator mapper)Here, the parameter mapper is a stateless function to apply to each element. The LongUnaryOperator represents an operation on a single long-valued operand that produces a long-valued result.To use the LongStream class in Java, import the following package:import java.util.stream.LongStream;Create a LongStream and add some elements:LongStream longStream1 = LongStream.of(15L, 30L, 45L, 67L, 80L);Now, create another LongStream and map it to a condition set for the elements of longStream1:LongStream longStream2 ...
Read MoreIntStream mapToObj() method in Java
The mapToObj() method in the IntStream class returns an object-valued Stream consisting of the results of applying the given function to the elements of this stream.The syntax is as follows. StreammapToObj(IntFunction
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