How to remove all white spaces in java [duplicate]

Answer 1

The most intuitive way of doing this without using literals or regular expressions:

yourString.replaceAll(" ","");

Answer 2

public static String removeSpace(String s) {
    String withoutspaces = "";
    for (int i = 0; i < s.length(); i++) {
        if (s.charAt(i) != ' ')
            withoutspaces += s.charAt(i);

    }
    return withoutspaces;

}

This is the easiest and most straight forward method to remove spaces from a String.

Answer 3

package com.infy.test;

import java.util.Scanner ;
import java.lang.String ;

public class Test1 {


    public static void main (String[]args)
    {

        String a  =null;


        Scanner scan = new Scanner(System.in);
        System.out.println("*********White Space Remover Program************\n");
        System.out.println("Enter your string\n");
    a = scan.nextLine();
        System.out.println("Input String is  :\n"+a);


        String b= a.replaceAll("\\s+","");

        System.out.println("\nOutput String is  :\n"+b);


    }
}

Answer 4

boolean flag = true;
while(flag) {
    s = s.replaceAll(" ", "");
    if (!s.contains(" "))
        flag = false;
}
return s;

Answer 5

trim.java:30: cannot find symbol
symbol  : method substr(int,int)
location: class java.lang.String
b = a.substr(i,160) ;

There is no method like substr in String class.

use String.substring() method.

Answer 6

Cant you just use String.replace(" ", "");