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The standard JavaScript alert box won’t work if you want to customize it. For that, we have a custom alert box, which we’re creating using jQuery and styled with CSS.ExampleYou can try to run the following code to create an alert box with 3 buttons i.e Yes, No and Cancel. function functionConfirm(msg, myYes, myNo, cancel) { var confirmBox = $("#confirm"); confirmBox.find(".message").text(msg); confirmBox.find(".yes, .no, .cancel").unbind().click(function() { ... Read More
The java.util.regex.MatcheResult interface provides methods to retrieve the results of a match.You can get an object of this interface using the toMatchResult() method of the Matcher class. This method returns a MatchResult object which represents the match state of the current matcher.The end(int group) method of this interface accepts an integer representing a particular group and returns the offset before the first match occurred in the specified group.Example Live Demoimport java.util.Scanner; import java.util.regex.MatchResult; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Example { public static void main( String args[] ) { String regex = "(.*)(\d+)(.*)"; //Reading input ... Read More
The JavaScript void returns an expression to remove the side effect and return the undefined primitive value. This side effect may occur while inserting expression in a web page.Let’s see an example of the void. The void(0) can be used with hyperlinks to obtain the undefined primitive value, ExampleLive Demo Understanding JavaScript void(0) Click me not once, but twice. We used JavaScript:void(0) above to prevent the page from reloading when the button is clicked the first time.The code will ... Read More
The java.util.regex.MatcheResult interface provides methods to retrieve the results of a match.You can get an object of this interface using the toMatchResult() method of the Matcher class. This method returns a MatchResult object which represents the match state of the current matcher.The start() method of this interface returns the beginning index of the current match.Example Live Demoimport java.util.Scanner; import java.util.regex.MatchResult; import java.util.regex.Matcher; import java.util.regex.Pattern; public class StartExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a String"); Scanner sc = new Scanner(System.in); String input = ... Read More
This character class \p{javaMirrored} matches upper case letters. This class matches the characters which returns true when passed as a parameter to the isMirrored() method of the java.lang.Character class.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{javaMirrored}]"; //Compiling the regular expression Pattern pattern = ... Read More
This character class \p{javaWhitespace} matches spaces. This class matches the characters which returns true when passed as a parameter to the isWhitespace() method of the java.lang.Character class.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{javaWhitespace}]"; //Compiling the regular expression Pattern pattern = Pattern.compile(regex); ... Read More
This character class \p{javaUpperCase} matches upper case letters. This class matches the characters which returns true when passed as a parameter to the isUpperCase() method of the java.lang.Character class.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{javaUpperCase}]"; //Compiling the regular expression Pattern pattern = ... Read More
This character class \p{javaLowerCase} matches lower case letters. This class matches the characters which returns true when passed as a parameter to the isLowerCase() method of the java.lang.Character class.Example 1 Live Demoimport java.util.Scanner; import java.util.regex.Matcher; import java.util.regex.Pattern; public class RegexExample { public static void main(String args[]) { //Reading String from user System.out.println("Enter a string"); Scanner sc = new Scanner(System.in); String input = sc.nextLine(); //Regular expression String regex = "[\p{javaLowerCase}]"; //Compiling the regular expression Pattern pattern = ... Read More
Problem statementGiven two arrays of positive integers. Select two sub-arrays of equal size from each array and calculate maximum possible OR sum of the two sub-arrays.ExampleIf arr1[] = {1, 2, 4, 3, 2} andArr2[] = {1, 3, 3, 12, 2} then maximum result is obtained when we create following two subarrays −Subarr1[] = {2, 4, 3} andSubarr2[] = {3, 3, 12}AlgorithmWe can use below formula to gets result −f(a, 1, n) + f(b, 1, n)Example Live Demo#include using namespace std; int getMaximumSum(int *arr1, int *arr2, int n) { int sum1 = 0; int sum2 = 0; for ... Read More
Problem statementGiven a permutation of N elements from 0 to N-1. A fixed point is an index at which the value is same as the index i.e. arr[i] = i. You are allowed to make at most 1 swap. Find the maximum number of fixed points that you can get.ExampleIf input array is {0, 1, 2, 3, 4, 6, 5} then answer is 7.To adjust fixed point, we have to swap 6 and 5After this entire array becomes fixed point and maximum value of fixed point is 7.AlgorithmCreate an array pos which keeps the position of each element in the ... Read More