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The preprocessor directive #pragma is used to provide the additional information to the compiler in C/C++ language. This is used by the compiler to provide some special features.Here is the syntax of #pragma directive in C/C++ language, #pragma token_nameThe table of some of #pragma directives in C/C++ language is given as follows, Sr.No.#pragma Directives & Description1#pragma startupBefore the execution of main(), the function specified in pragma is needed to run.2#pragma exitBefore the end of program, the function specified in pragma is needed to run.3#pragma warnUsed to hide the warning messages.4#pragma GCC dependencyChecks the dates of current and other file. If ... Read More
Declare a HashSet and add elements −Set hs = new HashSet(); hs.add(15); hs.add(71); hs.add(82); hs.add(89); hs.add(91); hs.add(93); hs.add(97); hs.add(99);To copy all the elements, use the toArray() method −Object[] obArr = hs.toArray();The following is an example to copy all elements to HashSet to an object array −Example Live Demoimport java.util.*; public class Demo { public static void main(String args[]) { Set hs = new HashSet(); hs.add(15); hs.add(71); hs.add(82); hs.add(89); hs.add(91); hs.add(93); hs.add(97); hs.add(99); ... Read More
To get the size of HashSet, use the size() method. Let us create a HashSet and add elements −Set hs = new HashSet(); hs.add(15); hs.add(71); hs.add(82); hs.add(89); hs.add(91);Let us now use size() and get the size of HashSet −hs.size()The following is an example to get the size of HashSet −Example Live Demoimport java.util.*; public class Demo { public static void main(String args[]) { Set hs = new HashSet(); hs.add(15); hs.add(71); hs.add(82); hs.add(89); hs.add(91); System.out.println("Elements = "+hs); ... Read More
Create a HashSet and add elements to it −Set hs = new HashSet(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); hs.add(81); hs.add(87);Try the below given code to iterate through the elements −Iterator i = hs.iterator(); while (i.hasNext()) System.out.println(i.next());To iterate through the elements of HashSet, try the following code −Example Live Demoimport java.util.*; public class Demo { public static void main(String args[]) { Set hs = new HashSet(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); hs.add(81); hs.add(87); hs.add(88); System.out.println("Elements = ... Read More
To remove specified element from HashSet, use the remove() method.First, declare a HashSet and add elements −Set hs = new HashSet(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); hs.add(81); hs.add(87); hs.add(88);Let’s say you need to remove element 39. For that, use the remove() method −hs.remove(39);The following is an example to remove specified element from HashSet −Example Live Demoimport java.util.*; public class Demo { public static void main(String args[]) { Set hs = new HashSet(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); hs.add(81); hs.add(87); ... Read More
Declare a HashSet and add elements −Set hs = new HashSet(); hs.add(20); hs.add(39); hs.add(67); hs.add(79);Now, iterate over the elements −for (Iterator i = hs.iterator(); i.hasNext();) { Object ele = i.next(); System.out.println(ele); }The following is an example that iterate over the elements of HashSet −Example Live Demoimport java.util.HashSet; import java.util.Iterator; import java.util.Set; public class Demo { public static void main(String[] argv) throws Exception { Set hs = new HashSet(); hs.add(20); hs.add(39); hs.add(67); hs.add(79); System.out.println("Elements = "); for (Iterator ... Read More
No, the operator < takes same time to execute as operator
ArrayBuffer object in JavaScript represents a fixed-length binary data buffer.The byteLength property of the ArrayBuffer returns an unsigned, 32-bit integer that specifies the size/length of the ArrayBuffer.SyntaxIts syntax is as followsarray.byteLengthExampleTry the following example. Live Demo JavaScript Example var arrayBuffer = new ArrayBuffer(8); var result = arrayBuffer.byteLength; document.write("length of the array buffer is: " + result); Outputlength of the array buffer is: 8ExampleYou can also create an array buffer object by passing a string value and get its length as in the following example. ... Read More
The function isless() is used to check that first argument is less than the second one. It is declared in “math.h” header file in C language. It returns true if successful otherwise it returns false.Here is the syntax of isless() in C language, bool isless(value1 , value2);Here, value1 − This is the first argument which will be checked with value2.value2 − This is the second argument which is used to check value1 ans see that it is less or not.Here is an example of isless() in C language, Example Live Demo#include #include int main() { int val1 = 48; ... Read More
The function islessgreater() is used to check that first argument is less than or greater than the second one. It is declared in “math.h” header file in C language. It returns true, if successful otherwise false.Here is the syntax of islessgreater() in C++ language, bool islessgreater(value1 , value2);Here, value1 − This is the first argument which will be checked with value2.value2 − This is the second argument which is used to check value1 and see that is less or greater.Here is an example of islessgreater() in C++ language, Example Live Demo#include #include using namespace std; int main() { int ... Read More