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📄 whiledemo.java

📁 java编程代码
💻 JAVA
字号:

public class WhileDemo
{
    public static void main(String[] args)
    {
        int countDown;

        System.out.println("First while loop:");
        countDown = 3;
        while (countDown > 0)
        {
            System.out.println("Hello");
            countDown = countDown - 1;
        }

        System.out.println("Second while loop:");
        countDown = 0;
        while (countDown > 0)
        {
            System.out.println("Hello");
            countDown = countDown - 1;
        }

        System.out.println("First do-while loop:");
        countDown = 3;
        do
        {
            System.out.println("Hello");
            countDown = countDown - 1;
        }while (countDown > 0);

        System.out.println("Second do-while loop:");
        countDown = 0;
        do
        {
            System.out.println("Hello");
            countDown = countDown - 1;
        }while (countDown > 0);
    }
}

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