I just want to know that what is the difference in single in multiple line comments in java programming language.

multiple line comments

```
/*
 * This is line 1
 * This is line 2
/*

```

single line comment

```
// This is line 1
// This is line 2

```

Then what would be the difference in these two comments in terms of program translation from **.java** to **.class** (or in other words why do we need single line comments, when already we have multiple line comments).
I already know that comments are removed by compilers in **Lexical Analyzer** phase.