Programming Articles - Page 2759 of 3366

The IntStream max() method in the Java IntStream class is used to get the maximum element from the stream. It returns an OptionalInt describing the maximum element of this stream, or an empty optional if this stream is empty.The syntax is as followsOptionalInt max()Here, OptionalInt is a container object which may or may not contain an int value.Create an IntStream and add some elements in the streamIntStream intStream = IntStream.of(89, 45, 67, 12, 78, 99, 100);Now, get the maximum element from the streamOptionalInt res = intStream.max();The following is an example to implement IntStream max() method in Java. The isPresent() method ... Read More

The accept() method of the LongStream.Builder class adds an element to the stream being built.The syntax is as followsvoid accept(long i)Here, i is the input.To use the LongStream.Builder class in Java, import the following packageimport java.util.stream.LongStream;Create a LongStreamLongStream.Builder builder = LongStream.builder();Add some elementsbuilder.accept(200L); builder.accept(600L); builder.accept(400L);The following is an example to implement LongStream.Builder accept() method in JavaExample Live Demoimport java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream.Builder builder = LongStream.builder();       builder.accept(200L);       builder.accept(600L);       builder.accept(400L);       builder.accept(350L);       builder.accept(900L);       builder.accept(850L); ... Read More

C++ provides multiple ways to concatenate strings. Macro string concatenation is one of such way. In this article, we will learn how to use C++ preprocessor macros to concatenate strings and tokens. Understanding Macros in C++ In C++, macros are small pieces of code that are defined using the preprocessor directive #define. Macros are generally used to define variables, constants, functions, and other code blocks. When the code is compiled, the preprocessor replaces every occurrence of the macro with its defined value before actual compilation begins. Let's see an example of a macro definition and its usage. // ... Read More

The add() method of the LongStream.Builder class in Java adds an element to the stream being built. The method returns this builder.The syntax is as followsdefault LongStream.Builder add(long i)Here, i is the input.To use the LongStream.Builder class in Java, import the following packageimport java.util.stream.LongStream;Create LongStream.Builder and add some elementsLongStream.Builder builder = LongStream.builder();Add some elements in the streambuilder.add(150L); builder.add(200L); builder.add(500L); builder.add(250L);The following is an example to implement LongStream.Builder add() method in JavaExample Live Demoimport java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream.Builder builder = LongStream.builder();       builder.add(150L);       builder.add(200L);   ... Read More

This is another tricky problem. In this program, we will see how to print a string using C where no quotation marks are used.Here we are using macro function. We are defining a macro function like#define getString(x) #xThe getString() is a macro function. It returns x by converting it into a string. The # before x is denoting that the function will convert x into a string.Input: Take one string without quote Output: Print that string into consoleAlgorithmStep 1:Take a string without quote Step 2: Use macro function to print it into a string Step 3: EndExample Code Live Demo#include #define ... Read More

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 More

The iterator() method of the DoubleStream class in Java returns an iterator for the elements of this stream.The syntax is as followsPrimitiveIterator.OfDouble iterator()Here, PrimitiveIterator.OfDouble is an Iterator specialized for double values.To use the DoubleStream class in Java, import the following packageimport java.util.stream.DoubleStream;The following is an example to implement DoubleStream iterator() method in JavaExample Live Demoimport java.util.*; import java.util.stream.DoubleStream; public class Demo {    public static void main(String[] args) {       DoubleStream doubleStream = DoubleStream.of(50.6, 69.8, 81.8, 95.6, 106.9);       PrimitiveIterator.OfDouble res = doubleStream.iterator();       while (res.hasNext()) {          System.out.println(res.nextDouble());       }    } }Output50.6 69.8 81.8 95.6 106.9

The sum() method of the LongStream class returns the sum of elements in this stream.The syntax is as followslong sum()To use the LongStream class in Java, import the following packageimport java.util.stream.LongStream;First, create an IntStream and add some elementsLongStream longStream = LongStream.of(100L, 30000L, 45000L, 55000L, 70000L);Now, add the elements of the streamlong res = longStream.sum();The following is an example to implement LongStream sum() method in JavaExample Live Demoimport java.util.stream.LongStream; public class Demo {    public static void main(String[] args) {       LongStream longStream = LongStream.of(100L, 30000L, 45000L, 55000L, 70000L);       long res = longStream.sum();       System.out.println("The ... Read More

The distinct() method in the IntStream class in Java returns a stream consisting of the distinct elements of this stream.The syntax is as followsIntStream distinct()Let’s say we have the following elements in the stream. Some of them are repeatedIntStream intStream = IntStream.of(10, 20, 30, 20, 10, 50, 80, 90, 100, 80);To get the distinct elements, use the IntStream distinct() method.The following is an example to implement IntStream distinct() method in JavaExample Live Demoimport java.util.stream.IntStream; public class Demo {    public static void main(String[] args) {       IntStream intStream = IntStream.of(10, 20, 30, 20, 10, 50, 80, 90, 100, 80); ... Read More

In this section we will see how to copy a string to other string without using strcpy() function. To solve this problem we can write our own function that can act like strcpy(), but here we will follow some trick. We will use another library function to copy a string into another.The logic is very simple. Here we will use the sprintf() function. This function is used to print some value or line into a string, but not in the console. This is the only difference between printf() and sprintf(). Here the first argument is the string buffer. where we ... Read More