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-rw-r--r--src/fmt/stringer_example_test.go29
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diff --git a/src/fmt/stringer_example_test.go b/src/fmt/stringer_example_test.go
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+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package fmt_test
+
+import (
+ "fmt"
+)
+
+// Animal has a Name and an Age to represent an animal.
+type Animal struct {
+ Name string
+ Age uint
+}
+
+// String makes Animal satisfy the Stringer interface.
+func (a Animal) String() string {
+ return fmt.Sprintf("%v (%d)", a.Name, a.Age)
+}
+
+func ExampleStringer() {
+ a := Animal{
+ Name: "Gopher",
+ Age: 2,
+ }
+ fmt.Println(a)
+ // Output: Gopher (2)
+}