For each method call in the table below, determine which of the methods on the t

Question

For each method call in the table below, determine which of the methods on the top table is actually called, or indicate that it is impossible because there is either no method that matches, there are several methods that match, or something else is wrong.

Method

Identifier

Method Signature

a

int addition (int x, int y)

b

double addition(int x, int y)

c

double addition(int x, double y)

d

double addition (double x, int y)

e

double addition(double x, double y)

f

double addition (double x, double y, double z)

Method

Identifier

or Impossible

Method Call

double sum = addition(0.4, 0.2);

int sum = addition (1, 5);

double sum = addition (3, 5.1);

addition (5.1, 3);

double sum = addition (1, 2, 3);

int sum = addition(2.1, 3.2, 4.3);

double sum = addition (5, 1);

double sum = addition (1.2, 2.3, 3.4, 4.5);

Method

Identifier

Method Signature

a

int addition (int x, int y)

b

double addition(int x, int y)

c

double addition(int x, double y)

d

double addition (double x, int y)

e

double addition(double x, double y)

f

double addition (double x, double y, double z)

Explanation / Answer

1. double sum = addition(0.4,0.2)   -   e (Since arguments and return types are of double type)
2. int sum = addition(1,5)           -   a (Since arguments and return types are of type int)
3. double sum = addition(3,5.1)       -   c (Since arguments are int and double type, return type is double)
4. addition(5.1,3)                   -   d (Arguments are double and int)
5. double sum = addition(1,2,3)       -   impossible, no method matches the signature
6. int sum = addition(2.1,3.2,4.3)   -   impossible, since the existing method has return type double
7. double sum = addition(5,1)       -   b (Arguments are of int type and return type is of double data type)
8. double sum = addition(1.2,2.3,3.4,,4.5)   -   impossible, no method matches the given signature

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