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Multi Threading

Question : 20

Total: 44

 import java.util.*; 
 public class NameList { 
 private List names = new ArrayList(); 
 public synchronized void add(String name) {  
   names.add(name);  
 } 
 public synchronized void printAll() { 
   for (int i = 0; i < names.size();i++) { 
     System.out print(names.get(i) + " ");  
   } 
 } 
 public static void main(String[] args){ 
   final NameList sl = new NameList();  
     for (int i = 0; i < 2; i++) {  
       new Thread() { 
         public void run() {  
           sl.add("A");  
           sl.add("B");  
           sl add("C");  
           sl.printAll(); 
         } 
       }.start(); 
     } 
   } 
 }

An exception may be thrown at runtime.
The code may run with no output, without exiting.
The code may run with no output, exiting normally.
The code may run with output "A B A B C C ", then exit.
The code may run with output "A B C A B C A B C ", then exit.
The code may run with output "A A A B C A B C C ", then exit.
The code may run with output "A B C A A B C A B C ", then exit.

Validate

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