What symbols indicate the presence of a comment in Java code?

In Java, comments are indicated by specific symbols that help developers annotate their code without affecting its execution. The correct choice is the one that includes the symbols for both single-line and multi-line comments.

Single-line comments in Java start with two forward slashes (//). Everything following these slashes on that line will be considered a comment and ignored by the compiler. This is commonly used for brief explanations or notes.

Multi-line comments, on the other hand, begin with a forward slash and an asterisk (/) and end with an asterisk and a forward slash (/). This allows for longer comments that can span multiple lines, making it easier to provide detailed documentation or to temporarily disable blocks of code without deleting them.

The chosen answer includes these symbols, making it correct. The other options mix up or use symbols that do not correspond to Java's commenting rules. It's important to be familiar with these symbols, as they are essential for writing clear and maintainable code.