Computer Applications

What will be the output when the following code segments are executed?
(i)

String s = "1001";
int x = Integer.valueOf(s);
double y = Double.valueOf(s);
System.out.println("x="+x);
System.out.println("y="+y);

(ii)

System.out.println("The king said \"Begin at the beginning!\" to me.");

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(i) The output of the code is:

x=1001
y=1001.0

(ii) The output of the code is:

The king said "Begin at the beginning!" to me.

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String P = "20", Q ="19";
int a = Integer.parseInt(P);
int b = Integer.valueOf(Q);
System.out.println(a+""+b);