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.

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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.