What do these code fragments print?

a. int n = 1;
int m = -1;
if (n < -m) { System.out.print(n); }
else { System.out.print(m); }
b. int n = 1;
int m = -1;
if (-n >= m) { System.out.print(n); }
else { System.out.print(m); }
c. double x = 0;
double y = 1;
if (Math.abs(x - y) < 1) { System.out.print(x); }
else { System.out.print(y); }
d. double x = Math.sqrt(2);
double y = 2;
if (x * x == y) { System.out.print(x); }
else { System.out.print(y); }