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Java Program to remove all white spaces from a String.
The replaceAll() method of the String class replaces each substring of this string that matches the given regular expression with the given replacement. You can remove white spaces from a string by replacing " " with "".
Example
public class DuplicateCharacters {
public static void main(String[] args){
String str = "Hello how are you";
str = str.replaceAll(" ", "");
System.out.println(str);
}
}Output
Hellohowareyou
Updated on 30-Jul-2019 22:30:21
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