Question

What is the output of the program segment below?

char c1 = 'A';
char c2 = 'B';
char c3 = 'C';
System.out.println(c1 + c2 + c3);
c1 = c2 = c3 = 'Q';
System.out.println(c1 + c2 + c3);
(A) ABC
ABQ
(B) QQQ
QQQ
(C) ABC
QQQ
(D) Error message

Answer 1

The output of the Java code snippet is the summed ASCII values of the characters 'A', 'B', and 'C', followed by the summed ASCII values of the character 'Q' three times. The first print statement outputs 198, and after reassigning 'Q' to all three variables, the second print statement outputs 243.

Step-by-step explanation:

The program segment provided is a Java code snippet that initially declares three char variables (c1, c2, and c3) and assigns them the values 'A', 'B', and 'C', respectively. When the System.out.println method is invoked, the characters are not concatenated. Instead, they are converted to their ASCII integer values and then added together. The character 'A' has an ASCII value of 65, 'B' is 66, and 'C' is 67. The output of the first System.out.println call is the sum of these values, which is 198.

The code then assigns the character 'Q' to all three variables, so c1, c2, and c3 will all contain 'Q', which has an ASCII value of 81. The output of the second System.out.println is the sum of 81 + 81 + 81, which equals 243.

Therefore, the output of the program is neither of the letter sequences listed in the options (A) to (D), but it will print two numbers: 198 and 243, which represent the summed ASCII values of the characters before and after the reassignment to 'Q'.