Java Switch开关如何与其他控制结构结合使用

在Java中，switch语句可以与其他控制结构（如if-else、循环等）结合使用，以实现更复杂的逻辑。以下是一些示例：

switch与if-else结合使用：

import java.util.Scanner;

public class SwitchIfElseExample {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a number between 1 and 3: ");
        int number = scanner.nextInt();

        switch (number) {
            case 1:
                System.out.println("You entered 1.");
                if (true) {
                    System.out.println("This is an if statement inside the case 1.");
                }
                break;
            case 2:
                System.out.println("You entered 2.");
                break;
            case 3:
                System.out.println("You entered 3.");
                if (false) {
                    System.out.println("This is an if statement inside the case 3.");
                } else {
                    System.out.println("This is an else statement inside the case 3.");
                }
                break;
            default:
                System.out.println("Invalid number.");
        }
    }
}

switch与循环结合使用：

import java.util.Scanner;

public class SwitchLoopExample {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a number between 1 and 5 (0 to exit): ");
        int number;

        do {
            System.out.print("Enter a number: ");
            number = scanner.nextInt();

            switch (number) {
                case 1:
                    System.out.println("You entered 1.");
                    break;
                case 2:
                    System.out.println("You entered 2.");
                    break;
                case 3:
                    System.out.println("You entered 3.");
                    break;
                case 4:
                    System.out.println("You entered 4.");
                    break;
                case 5:
                    System.out.println("You entered 5.");
                    break;
                case 0:
                    System.out.println("Exiting...");
                    break;
                default:
                    System.out.println("Invalid number.");
            }
        } while (number != 0);
    }
}

这些示例展示了如何在switch语句中使用if-else和循环控制结构。你可以根据需要修改这些示例，以实现更复杂的逻辑。