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What is the output of the following program? Show your reasoning by including ta

ID: 3629809 • Letter: W

Question

What is the output of the following program? Show your reasoning by including tables that illustrate how the values of the variables change over time, following the approach shown in lecture.
public class TracingMethodCalls {
public static int compute(int x, int y) {
x += 3;
y = 2*y - x;
System.out.println(x + " " + y);
return x;
}

public static void main(String[] args) {
int x = 1;
int y = 3;
x = compute(x, y);
System.out.println(x + " " + y);
compute(y, y);
System.out.println(x + " " + y);
y = 3 + 4 * compute(y, x);
System.out.println(x + " " + y);
}
}

Explanation / Answer

public class TracingMethodCalls {public static int compute(int x, int y) {x += 3;y = 2*y - x;System.out.println(x + " " + y);return x;}public static void main(String[] args) {int x = 1;int y = 3;x = compute(x, y);System.out.println(x + " " + y);compute(y, y);System.out.println(x + " " + y);y = 3 + 4 * compute(y, x);System.out.println(x + " " + y);}} x = 1 + 3 will be updated. and will be returned y = 2*3-4 = 6-4 = 2 4 2 4,2 will be printed 4 3 4,3 will be printed .6 0 again calling compute (x,y) 4 3 again 4,3will be printed. 6 2 call compute(y,x) 4 27 print final values

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