Needing to compare my new files

1. Recursive.java which contains the details of creating the 4 methods as specified above:
   • int sum_sqr_rec(stack stk),(15 points)
   • int plus_minus_rec(stack stk),(15 points)
   • void prt_chars_rev_rec(stack stk),(15 points)
   • void prt_chars_rec(queue stk),(15 points)
2. RecursiveDemo.java which:
   • A- reads a string expression:
     • {(1+2)+[4*(2+3)]}
     • and store the expression in a stack and a queue.(15 points)
     • a- prints the corresponding expression "in reverse" using: prt_chars_rev_rec ( 5 points)
     • b- prints the corresponding expressing "as is" using: prt_chars_rec.( 5 points)
   • B- reads an array of integers: { 1, 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 }
     • and store them in a stack of ints.(5 points)
   • Then it:
   • C- prints the sum of the squares of the elements in the stack usingint sum_sqr_rec(stack stk) and outputting the value(5 points):
     • 385
   • D- prints the sum of the elements in the stack using:
     • intplus_minus_rec(stack stk)and outputting the value(5 points):
     • 1 - 2 + 3 - 4 + 5 - 6 + 7 - 8 + 9 - 10 = -5