What error, if any, is in the following code?

public class Test {

private int num;

private void setNum (int n) {

num = n;

}

}

a. setNum should have no parameter.

b. setNum must be public.

c. setNum should return int, not void.

d. Code is correct as is.

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What error, if any, is in the following code?public class Test {private int num;private void setNum (int n) {num = n;}}a. setNum should have no parameter.b. setNum must be public.c. setNum should return int, not void.d. Code is correct as is.

What error, if any, is in the following code?

public class Test {

private int num;

private void setNum (int n) {

num = n;

}

}

a. setNum should have no parameter.

b. setNum must be public.

c. setNum should return int, not void.

d. Code is correct as is.