Thundermonter Thundermonter 19-12-2021 Mathematics contestada Java 1 Question 20 What will be printed by the following code? String str = "Have a nice day!"; System.out.println(str.length()); a. Have a nice day b. 16 c. 13 d. Have e. 4 Question 21 Examine this code: String str = "Hello World!" ; What is the index of the character 'W'? a. 6 b. 7 c. 5 d. 8 e. 2