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public
class

Foo {
    private
int
x = 100;
    public
int

getX() {
        return
x;
    }
    public
int
fix(int
y)
{
        x = x - y;
        return

x;
    }
}
public
class

MyRunnable implements
Runnable {
   
private
Foo foo = new
Foo();
    public
static

void
main(String[] args) {
       
MyRunnable r = new
MyRunnable();
       
Thread ta = new
Thread(r, "Thread-A"
);
        Thread tb = new
Thread(r, "Thread-B"
);
        ta.start();
       
tb.start();
    }
    public

void
run() {
        for
(int
i =
0; i < 3; i++) {
            this
.fix(30);
            try
{
                Thread.sleep(1);
            } catch

(InterruptedException e) {
                e.printStackTrace();
    &nbs