Need help pls public class TestThread extends Thread { private static int x;
public synchronized void doSomething () {
int current = x;
current++;
x = current;
}
public void run() {
doSomething();
}
}

Which statement is
true?
Select one:

a. Declaring the doSomething() method as static would make the class thread-safe

b. Synchronizing the run() method would make the class thread-safe

C. The data in variable "X" are protected from concurrent access problems

d. Compilation fails
e. An exception is thrown at runtime

a.

Explanation:

The private variable x is static, so synchronizing on object instances doesn't add any real protection.

If multiple objects of the class exist, they can still simultaneously run doSomething() and mess up the shared x.

By making doSomething() static, there is only one instance of it and indeed access to x would become thread safe.

a variable of array type holds a reference of object

array are commonly used in computer program to organize data so that a related set of values

array are using zero base indexing it start with 0.

all component of array have same type, two different types doesn't use in single array

if array are store 10 quantities its index value varies from 0 to 9.

it stores 1st quantity value in index value 0 and this process will same till index value 9.