Today’s most popular database systems are ________.

In the accompanying figure, what effect has been applied to the "D" on the right?

A. Chiseled Emboss Hard B. Hard Chisel Bevel C. Inner Bevel Chisel Hard D. Inner Bevel Chisel Soft

Which of the following will create a String different from the other three?

a. String r = "123456" b. int i = 123; int j = 456; String r = String.valueOf(j) + String.valueOf(i); c. int i = 123; int j = 456; String r = String.valueOf(i) + String.valueOf(j); d. int i = 123; int j = 456; String r = i + j;