Discussion :: Threads
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What will be the output of the program?
class MyThread extends Thread { public static void main(String [] args) { MyThread t = new MyThread(); /* Line 5 */ t.run(); /* Line 6 */ } public void run() { for(int i=1; i 3; ++i) { System.out.print(i + ".."); } } }
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A.
This code will not compile due to line 5. |
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B.
This code will not compile due to line 6. |
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C.
1..2.. |
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D.
1..2..3.. |
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Answer : Option C
Explanation :
Line 6 calls the run() method, so the run() method executes as a normal method should and it prints "1..2.."
A is incorrect because line 5 is the proper way to create an object.
B is incorrect because it is legal to call the run() method, even though this will not start a true thread of execution. The code after line 6 will not execute until the run() method is complete.
D is incorrect because the for loop only does two iterations.
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