JAVA URGENT Help Please.

1. Show the output of the following segment, given the input on the board

String one = Shake, Rattle Roll;

1. Complete the code below to find the position of the comma within the above string.

int pos = -1;

for ( int i = 0 ; ; i++ )

if ( == ,)

pos = ;

2. Give a segment of code to create a new string consisting of the first and last words in the above string separated by a single space i.e. Roll Shake.