CODEWITHSUNDEEP
javastringchar
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Reputation: 13

How to check how much char space in 1 string

Lets say I have a string with some text:

String str="Hello My Name Is Help!"

And I want to check how much space chars I have in the following String str. I would like a make a method that takes that following string and returns the number of whitespaces in that string. For example if I name my method getNumberOfWhiteSpaces(String str) and call it a I should get back the number of whitespaces.

if( getNumberOfWhiteSpaces(String str) > 3)
     System.out.println("There are more then 3 spaces in this string");

public int getNumberOfWhiteSpaces(String str) {
  ....
  return some number
}

Upvotes: 0

Views: 152

Answers (3)

Jean-Baptiste Yunès
Jean-Baptiste Yunès

Reputation: 36431

Java 8 way could be:

s.chars().filter(Character::isWhitespace).count()

which will give you the number of white space in the string s. You can also use isSpaceChar.

Upvotes: 1

Vijaya Pandey
Vijaya Pandey

Reputation: 4282

Try:

String str="Hello My Name Is Help!";
int spaces = str.length() - str.replace(" ", "").length();
if(spaces > 3){
    System.out.println("There are more then 3 spaces in this string");
}

Upvotes: 1

Youcef LAIDANI
Youcef LAIDANI

Reputation: 60046

A solution is to use replaceAll to replace all non space ([^\s]) with empty and check the length of result output :

if (str.replaceAll("[^\\s]", "").length() > 3) {...}

Upvotes: 1

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