JAVA

java 8 remove spaces from string

a.replaceAll("s+","");

java remove space at the end of string

String str = "Hello ";
System.out.println(str.trim()); // "Hello"

remove spaces java

public class StringSpaces {
  public static void main(String[] args) {	
    String str = "  Hello    World		";
    str = str.trim();
    System.out.println("String- " + str);
  }
}