package java8sample; import java.util.function.Function; public class Java8Sample { public static void main(String[] args) { Function<String, String> wrapDoubleQuotation = str -> "\"" + str + "\""; Function<String, String> wrapSingleQuotation = str -> "'" + str + "'"; Function<String, String> wrapDoubleAndSingleQuotation = wrapDoubleQuotation.compose(wrapSingleQuotation); String result = wrapDoubl
![java.util.function以下の関数インターフェース使い方メモ - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/4d0fe50577494b2c5f0044bf22f12a48e3415088/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9amF2YS51dGlsLmZ1bmN0aW9uJUU0JUJCJUE1JUU0JUI4JThCJUUzJTgxJUFFJUU5JTk2JUEyJUU2JTk1JUIwJUUzJTgyJUE0JUUzJTgzJUIzJUUzJTgyJUJGJUUzJTgzJUJDJUUzJTgzJTk1JUUzJTgyJUE3JUUzJTgzJUJDJUUzJTgyJUI5JUU0JUJEJUJGJUUzJTgxJTg0JUU2JTk2JUI5JUUzJTgzJUExJUUzJTgzJUEyJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMxRTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmcz1lYmQ0ZjQ3MGQwNjE3NWI2MTI2Njk3ZTY2ZjM2YzllMg%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBvcGVuZ2wtODA4MCZ0eHQtY29sb3I9JTIzMUUyMTIxJnR4dC1mb250PUhpcmFnaW5vJTIwU2FucyUyMFc2JnR4dC1zaXplPTM2JnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnM9MGM1YTYwMDA3YzkwM2UwMmI4NTIwYzU1MmY5MDQyOGI%26blend-x%3D142%26blend-y%3D436%26blend-mode%3Dnormal%26txt64%3DaW4gVElT5qCq5byP5Lya56S-%26txt-width%3D770%26txt-clip%3Dend%252Cellipsis%26txt-color%3D%25231E2121%26txt-font%3DHiragino%2520Sans%2520W6%26txt-size%3D36%26txt-x%3D156%26txt-y%3D536%26s%3D3c4c9c69b2858fe235679eee21a78967)