Create a character vector that contains space, tab, and null characters.

chr = sprintf(' \t MathWorks \t');
chr = [chr char(0)];

Display chr between | characters.

['|' chr '|']

ans = 
'| 	 MathWorks 	 |'

Remove the trailing blanks and display newChr between | characters.

newChr = deblank(chr);
['|' newChr '|']

ans = 
'| 	 MathWorks|'

Create a character array that contains multiple pieces of text. When a character array contains multiple rows, it is often necessary to pad the array with space characters.

chr = ['Mercury';
       'Apollo ';
       'ISS    ']

chr = 3x7 char array
    'Mercury'
    'Apollo '
    'ISS    '

Convert chr to a string array. The elements of str include the trailing space characters that padded chr.

str = string(chr)

str = 3x1 string
    "Mercury"
    "Apollo "
    "ISS    "

To remove the trailing spaces, use the deblank function.

newStr = deblank(str)

newStr = 3x1 string
    "Mercury"
    "Apollo"
    "ISS"

Remove trailing blanks from all the character vectors in a cell array and display them.

A = {'MATLAB    ','SIMULINK    ';
     'Toolboxes    ','MathWorks    '}

A = 2x2 cell
    {'MATLAB    '   }    {'SIMULINK    ' }
    {'Toolboxes    '}    {'MathWorks    '}

B = deblank(A)

B = 2x2 cell
    {'MATLAB'   }    {'SIMULINK' }
    {'Toolboxes'}    {'MathWorks'}

Create a character vector that includes the nonbreaking space character, char(160), as a trailing blank character.

chr = '     MathWorks';
chr = [chr char(160) '     '];

Display chr between | symbols to show the leading and trailing whitespace.

['|' chr '|']

ans = 
'|     MathWorks      |'

Remove the trailing whitespace characters.

newChr = deblank(chr);

Display newChr between | symbols. deblank removes the trailing space characters, but leaves the nonbreaking space at the end of newChr.

['|' newChr '|']

ans = 
'|     MathWorks |'