In Java, what does the + operator perform?

In Java, what does the + operator perform?

• A. Subtraction
• B. Addition
• C. Multiplication
• D. Modulo

Answer: (B)

The + operator in Java primarily performs numeric addition for number types. It also has a special role with strings: if either operand is a String, Java converts the other operand to a string and concatenates them. So its main function is addition, but it can also be used to build strings by joining text and numbers or other strings. For examples: 2 + 3 equals 5; "Hello" + "World" becomes "HelloWorld"; "Answer: " + 42 becomes "Answer: 42". The other symbols represent subtraction, multiplication, and modulo, respectively, which are different operations.

The + operator in Java primarily performs numeric addition for number types. It also has a special role with strings: if either operand is a String, Java converts the other operand to a string and concatenates them. So its main function is addition, but it can also be used to build strings by joining text and numbers or other strings.

For examples: 2 + 3 equals 5; "Hello" + "World" becomes "HelloWorld"; "Answer: " + 42 becomes "Answer: 42". The other symbols represent subtraction, multiplication, and modulo, respectively, which are different operations.