peamine pakett func main() { c := make(chan int, 1) for range 3 { select { vaikimisi: println(1) juhtum <-c: println(2) juhtum c <- 1: println(3) } } }

This Go code creates a buffered channel c with size 1 and runs a loop of 3 iterations, where each iteration executes a select with three cases:

• default: prints 1
• receiving from channel c: prints 2
• sending the value 1 to channel c: prints 3

Let's analyze the behavior per iteration:

1. The channel is empty, the buffer is empty, can send to the channel — case c <- 1 triggers, prints 3.
2. Now the channel has one value (buffer is full), cannot send, but can receive — case <-c triggers, prints 2.
3. The channel is empty again, can send — prints 3.

Final output:

3
2
3

Thus, the program demonstrates working with a buffered channel and choosing between sending, receiving, and the default case in select.