How to trim white space from all elements in array?

Question

I was just wondering what the best way to remove the white space from all the elements of a list would be.

For example if I had String [] array = {" String", "Tom Selleck "," Fish "} How could I get all the elements as {"String","Tom Selleck","Fish"}

Thanks!

Answer 1

Try this:

String[] trimmedArray = new String[array.length]; for (int i = 0; i < array.length; i++)     trimmedArray[i] = array[i].trim(); 

Now trimmedArray contains the same strings as array, but without leading and trailing whitespace. Alternatively, you could write this for modifying the strings in-place in the same array:

for (int i = 0; i < array.length; i++)     array[i] = array[i].trim(); 

Answer 2

Another java 8 lambda option :

String[] array2 = Arrays.stream(array).map(String::trim).toArray(String[]::new); 

And the ugly but optimized version without new array creation

Arrays.stream(array).map(String::trim).toArray(unused -> array); 

Original "array" is modified.