110 lines
2.4 KiB
Go
110 lines
2.4 KiB
Go
package main
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// ---------------------------------------------------------
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// EXERCISE: Slicing by arguments
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//
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// We've a []string, you will get arguments from the command-line,
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// then you will print only the elements that are requested.
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//
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// 1. Print the []string (it's in the code below)
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//
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// 2. Get the starting and stopping positions from the command-line
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//
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// 3. Print the []string slice by slicing it using the starting and stopping
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// positions
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//
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// 4. Handle the error cases (see the expected output below)
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//
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// 5. Add new elements to the []string slice literal.
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// Your program should work without changing the rest of the code.
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//
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// 6. Now, play with your program, get a deeper sense of how the slicing
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// works.
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//
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//
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// EXPECTED OUTPUT
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//
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// go run main.go
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// Provide only the [starting] and [stopping] positions
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//
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//
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// (error because: we expect only two arguments)
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//
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// go run main.go 1 2 4
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// Provide only the [starting] and [stopping] positions
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//
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//
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// (error because: starting index >= 0 && stopping pos <= len(slice) )
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//
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// go run main.go -1 5
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// Wrong positions
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//
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//
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// (error because: starting <= stopping)
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//
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// go run main.go 3 2
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// Wrong positions
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//
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//
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// go run main.go 0
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Normandy Verrikan Nexus Warsaw]
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//
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//
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// go run main.go 1
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Verrikan Nexus Warsaw]
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//
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//
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// go run main.go 2
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Nexus Warsaw]
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//
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//
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// go run main.go 3
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Warsaw]
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//
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//
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// go run main.go 4
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// []
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//
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//
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// go run main.go 0 3
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Normandy Verrikan Nexus]
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//
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//
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// go run main.go 1 3
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Verrikan Nexus]
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//
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//
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// go run main.go 1 2
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// ["Normandy" "Verrikan" "Nexus" "Warsaw"]
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//
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// [Verrikan]
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//
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// ---------------------------------------------------------
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func main() {
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// uncomment the slice below
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// ships := []string{"Normandy", "Verrikan", "Nexus", "Warsaw"}
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}
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