learngo/02-write-your-first-program/questions/03-run-your-first-program-questions.md

What's the difference between go build and go run?

1. go run just compiles a program; whereas go build both compiles and runs it.
2. go run both compiles and runs a program; whereas go build just compiles it. CORRECT

1. It's opposite actually.
2. go run compiles your program and puts it in a temporary directory. Then it runs the compiled program in there.

Which directory go build puts the compiled code into?

1. The same directory where you call go build CORRECT
2. $GOPATH/src directory
3. $GOPATH/pkg directory
4. Into a temporary directory.

2. There only lives Go source-code files
3. Go only puts your code there when you call go install.

Which directory go run puts the compiled code into?

1. The same directory where you call go run
2. $GOPATH/src directory
3. $GOPATH/pkg directory
4. Into a temporary directory. CORRECT

Which one below is true for runtime?

1. It happens when your program starts running in a computer CORRECT
2. It happens while your program is being compiled

Which one below is true for the compile-time?

1. It happens when your program starts running in a computer
2. It happens while your program is being compiled CORRECT

In which stage your program can print a message to the console?

1. While it's being compiled.
2. While it runs (after compile-time). CORRECT
3. While it runs (inside the compile-time).

1. In the compilation step your program cannot print a message. In that stage, it's literally dead.
2. That's right. That's the only time which your program can interact with a computer and instruct it to print a message to the console.
3. Running can only happen after the compile-time