public class MainClass { public static void main(String[] args) { char symbol = 'A'; /*from w w w.j a v a 2 s. com*/ if (Character.isLetterOrDigit(symbol)) { System.out.println("true"); }else{ System.out.println("false"); } } } ...
Java code to check if string is number This code checks whether the given string is numeric is not. publicclassIsStringNumeric{publicstaticvoidmain(String[]args){// We have initialized a string variable with double valuesString str1="1248.258";// We have initialized a Boolean variable and//...
In this tutorial, we will learn how to determine whether the given input is an integer is or not.
Learn in Java Kotlin 1. Overview In this tutorial, we’ll see a few different solutions to check if a given string is a number using Scala. 2. Using Character.isDigit Checking if a String is a number is trickier than it sounds. If we’re sure there’s no decimal part, then we can...
Example 3: Java Program to Check Alphabet using isAlphabetic() Methodclass Main { public static void main(String[] args) { // declare a variable char c = 'a'; // checks if c is an alphabet if (Character.isAlphabetic(c)) { System.out.println(c + " is an alphabet."); } else {...
Another way to check if a String contains only digits is to use a combination of all and isDigit methods: fun isNumeric(toCheck: String): Boolean { return toCheck.all { char -> char.isDigit() } } Here, we check if each character of a String is a numeric digit. The all method ret...
You just need to check if character is part of set {a,A,e,E,i,I,o,O,u,U}.If it is part of set then it is Vowel else Consonant. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 importjava.util.Scanner; ...
Java Code: // Importing the required Java utilities packageimportjava.util.*;// Defining a class named SolutionpublicclassSolution{// Method to check if one string contains another stringpublicstaticbooleanis_str_contains(Stringstr1,Stringstr2){// Checking if either of the input strings is nulli...
Java Code: // Importing necessary classes from the java.util packageimportjava.util.*;// Defining a class named "solution"publicclasssolution{// Method to check if a word is an abecedarian wordpublicstaticbooleanis_abecedarian_word(Stringword){// Finding the index of the last character in the...
Check if Last Character of a String Is A Number check if one of the Checkboxs in a groupbox is checked Check if right-mouse click ? Check if socket is listening Check if string is word Check if Thread Completed Check if value exists on database LINQ check is a dictionary value is e...