谨慎 try-finally

例 1：不使用 try-finally 包裹 continue

public class Test { public static void main(String[] args) { int counter = 10; while (counter > 0) { counter--; if (counter % 2 == 0) { System.out.println("continue"); continue; } System.out.println(counter); } } }

控制台输出：

9 continue 7 continue 5 continue 3 continue 1 continue

例 2：使用 try-finally 包裹 continue

public class Test { public static void main(String[] args) { int counter = 10; while (counter > 0) { counter--; try { if (counter % 2 == 0) { continue; } } finally { System.out.println(counter); } } } }

控制台输出：

9 continue 8 7 continue 6 5 continue 4 3 continue 2 1 continue 0