Android Multithreading Research (2) Timer

Let's look at a piece of code:

public static void Main (string[] args) {  
    new Timer (). Schedule (new TimerTask () {  
              
        @Override public
        void Run () {  
            System.out.println ("Sunshine Cockroach");  
        }  
    }, 5000);  
          
    int i = 0;  
    while (true) {  
        System.out.println (i++);  
        try {  
            thread.sleep (1000);  
        } catch (Interruptedexception e) {  
            e.printstacktrace ();  
        }  
}}

Modify the above code as follows:

New Timer (). Schedule (new TimerTask () {  
          
    @Override public
    void Run () {  
        System.out.println ("Sunshine Cockroach");  
    }  
}, 2000, 3000);

The timer timer starts executing the Run method after 2000ms and repeats every 3000ms.

If there is a demand, 1s, 2s, 1s, 2s ... Execute the code in the timer separately (even seconds and odd seconds to perform different timers respectively), how do we implement (s on behalf of the second)

Implementation Mode one:

public static void Main (string[] args) {  
    new Timer (). Schedule (new TimerTask () {  
              
        @Override public
        void Run () {  
            System.out.println ("Sunshine cockroach 2 Seconds");  
            New Timer (). Schedule (new TimerTask () {  
                      
                @Override public
                void Run () {  
                    System.out.println ("Sunshine cockroach 4 Seconds")  
                },  
            1000);  
        }}  
    , 1000;  
          
    int i = 0;  
    while (true) {  
        System.out.println (i++);  
        try {  
            thread.sleep (1000);  
        } catch (Interruptedexception e) {  
            e.printstacktrace ();  
        }  
}}