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沐宇首页 互联网技术知识问答 Java Switch涓嶱attern Matching缁撳悎

Java Switch涓嶱attern Matching缁撳悎

扬州沐宇科技
2024-06-28 12:07:30
Java

Java 15寮曞叆浜哖attern Matching for instanceof锛屽彲浠ヤ笌Switch璇彞缁撳悎浣跨敤锛屼互渚挎洿杞绘澗鍦板瀹炰緥杩涜鍖归厤鍜屽鐞嗐€?/p>

绀轰緥浠ｇ爜濡備笅锛?/p> 

public class Main {
    public static void main(String[] args) {
        Object obj = "Hello";

        switch (obj) {
            case String s -> System.out.println("String: " + s);
            case Integer i -> System.out.println("Integer: " + i);
            default -> System.out.println("Unknown type");
        }
    }
}

鍦ㄤ笂闈㈢殑浠ｇ爜涓紝鎴戜滑浣跨敤浜哖attern Matching for instanceof鏉ュ垽鏂璷bj鐨勭被鍨嬶紝骞跺湪Switch璇彞涓牴鎹笉鍚岀被鍨嬭繘琛屽鐞嗐€傝繖鏍峰彲浠ヨ浠ｇ爜鏇村姞绠€娲佸拰鏄撹銆?/p>

闇€瑕佹敞鎰忕殑鏄紝Pattern Matching for instanceof鍙兘鐢ㄤ簬Java 15鍙婁互涓婄増鏈€傚湪涔嬪墠鐨勭増鏈腑锛岄渶瑕佷娇鐢╥nstanceof鏉ヨ繘琛岀被鍨嬪垽鏂€?/p>

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