To check if a String contains a special character in Java, you can use a regular expression to match any character that is not a letter or a digit.
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"); } } } ...
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 {...
I want to check if my string contains a + character.I tried following code s= "ddjdjdj+kfkfkf"; if(s.contains ("\\+"){ String parts[] = s.split("\\+); s=
In this post, we will see how to check a Character is Vowel or Consonant. 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
} else if (specialChars.contains(String.valueOf(currentCharacter))) { specialCharacterPresent = true; } } return numberPresent && upperCasePresent && lowerCasePresent && specialCharacterPresent; } We should note a few things here. Basic idea is that we iterate through ourStringand check if its...
Hi all! Trying to write a small code to check if a string is all upper or lower case letters, such as "JAVA" or "hello", which should return true. If has mixed upper o
IntlChar::isJavaSpaceChar—Check if code point is a space character according to Java 说明 publicstaticIntlChar::isJavaSpaceChar(int|string$codepoint):?bool Determine if the specified code point is a space character according to Java. truefor characters with general categories "Z" (separators),...
If the character wasn’t found at all in the string, strpos() returns false. If its first occurrence is found, it returns true.In the if condition, we simply print to the page that the character was present if it is present and strpos returns true, otherwise, we print the character ...
Program to check given character is an alphabet or not in javaimport java.util.Scanner; public class AlphabetOrNot { public static void main(String args[]) { //create and initialize object. char ch; Scanner scan = new Scanner(System.in); //Input character System.out.print("Enter a ...