Watch 10 video solutions for Print FooBar Alternately, a medium level problem involving Concurrency. This walkthrough by Coding Interview Prep has 10,511 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
Suppose you are given the following code:
class FooBar {
public void foo() {
for (int i = 0; i < n; i++) {
print("foo");
}
}
public void bar() {
for (int i = 0; i < n; i++) {
print("bar");
}
}
}
The same instance of FooBar will be passed to two different threads:
A will call foo(), whileB will call bar().Modify the given program to output "foobar" n times.
Example 1:
Input: n = 1 Output: "foobar" Explanation: There are two threads being fired asynchronously. One of them calls foo(), while the other calls bar(). "foobar" is being output 1 time.
Example 2:
Input: n = 2 Output: "foobarfoobar" Explanation: "foobar" is being output 2 times.
Constraints:
1 <= n <= 1000