Method that converts a character to uppercase is

1. toUpper()
2. ToUpperCase()
3. TOUPPERCASE()
4. toUpperCase(char)

Give the output of the following code

System.out.println("Good".concat("Day"));

1. GoodDay
2. Good Day
3. Goodday
4. goodDay

This access specifier achieves the lowest level of accessibility.

1. Public
2. Protected
3. Private
4. Default

Assertion (A) Line comment is used for a single line of comment.
Reason (R) A line comment starts with forward slash and asterisk(/*).

1. Both Assertion (A) and Reason (R) are true and Reason (R) is a correct explanation of Assertion (A).
2. Both Assertion (A) and Reason (R) are true and Reason (R) is not a correct explanation of Assertion (A).
3. Assertion (A) is true and Reason (R) is false.
4. Assertion (A) is false and Reason (R) is true.