Solve

After line 14 has executed, the size of colors will be 4. The value of the postfix expression 7 3 + 94 -/3 * is 6. The two postfix expressions 8 4/2 and 8 4 2//have the same value. The infix expression 2+2 - 4*2*24 has same value as the postfix expression: 2 2 * 4 2* - 24* The postfix expression 8 4 * 2 * has same value as infix 8 + (2 + 4) Questions 18-22 refer to this code: jave.util. Stack s = new java. util. Stack (); System.out. println(s. empty()): for (int i = 0; i