Two threads print strings alternately

Requirements:

There are two strings:

String a = “”1234567”; String b = “ABCDEFG”

Use two threads T1 and T2 to print strings A and B, respectively. Enable it to output alternately: 1A2B3C4D5E6F7G

Solution:

• Here using juC under the tool class: LockSupport, show thread straight line communication, that is direct, and violence!
• Data sources:

    private Thread t1;
    private Thread t2;
    private char[] aI = "1234567".toCharArray();
    private char[] aC = "ABCDEFG".toCharArray();
Copy the code

• Ideas and concrete implementation

 public void test3(a) {
        t1 = new Thread(new Runnable() {
            @Override
            public void run(a) {
                for (char c : aI) {
                    // Just print a character
                    System.out.print(c);
                    // Unlock T2 immediately
                    LockSupport.unpark(t2);
                    // Lock yourselfLockSupport.park(); }}}); t2 =new Thread(new Runnable() {
            @Override
            public void run(a) {
                for (char c : aC) {
                    // Lock yourself up to prevent yourself from printing first
                    LockSupport.park();
                    // unlocked by T1, start printing a character
                    System.out.print(c);
                    // Unlock the T1 thread so that T1 can continue printingLockSupport.unpark(t1); }}}); t1.start(); t2.start(); }Copy the code