34 lines
730 B
Go
34 lines
730 B
Go
package main
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import "fmt"
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// an array is a numbered sequence of elements of a specific length
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func main() {
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// array a that will hold exactly 5 ints
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var a [5]int
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fmt.Println("emp:", a)
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// set/get a value at an index using the array[index]=value syntax
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a[4] = 100
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fmt.Println("set:", a)
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fmt.Println("get:", a[4])
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// builtin len returns the length of an array
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fmt.Println("len:", len(a))
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// declare and initialize an array in one line
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b := [5]int{1, 2, 3, 4, 5}
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fmt.Println("dcl:", b)
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// Array types are one-dimensional
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// compose types to build multi-dimensional data structures
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var twoD [2][3]int
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for i := 0; i < 2; i++ {
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for j := 0; j < 3; j++ {
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twoD[i][j] = i + j
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}
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}
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fmt.Println("2d: ", twoD)
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}
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