how could this be explained?

1. Walk through your trace and explain each step in your own words and describe what is happening in memory 2. Which two if statements were you able to comment out to produce the same output? Explain. public static void main(Stringl args) String stri null; String str2 = new String("Karel"); String str3 = "Karel"; if (stri == null) { str1 = str2; B 9 1 12 13 if (stri = str2) { System.out.println("stri and str2 refer to the same object"); 3 15 - 16 17 18 19 20- 21 Hif (str2 * str3) !! System.out.println("str2 and str3 refer to the same object"); 23 24 if (stri.equals(str2) && str2.equals(str)) System.out.println("stri, str2, and str3 are equal"); 3 25 26 27 28 29 30 31 32 //if ((stri - str2) && (str2 str3)) System.out.println("stri, str 2, and str3 are the same objects"): 7 34 35 30