Teach you to use Java implementation to remove various spaces _java

1. String.Trim ()

Trim () is to remove the trailing space

2.str.replace ("", ""); Remove all spaces, including end to end, middle

String str = "Hell o";
String str2 = Str.replaceall ("", "");
System.out.println (STR2);

3. or ReplaceAll ("+", ""); Remove all spaces

4.str =. ReplaceAll ("\s*", "");

can replace most whitespace characters, not limited to spaces
s can match spaces, tabs, page breaks, and so on any one of the white space characters

5. Or the following code can also remove all spaces, including the end, the middle

public string Remove (String Resource,char ch)
  {
    stringbuffer buffer=new stringbuffer ();
    int position=0;
    char Currentchar;

    while (Position<resource.length ())
    {
      Currentchar=resource.charat (position++);
      if (currentchar!=ch) buffer.append (Currentchar); return buffer.tostring ();
  }

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