You have a class Measure:public class Measure { public float addition(float a, int b){ return a + b; }}When executed, which lines of code will involve the type promotion of one of the input arguments specified?Instruction: Choose the option that best answers the question. Answer ChoicesMeasure myMeasure = new Measure(); System.out.println(myMeasure.addition(2.0, 3l));Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2, 3f));Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2f, 3));Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2, 3));
Question
You have a class Measure:public class Measure { public float addition(float a, int b){ return a + b; }}When executed, which lines of code will involve the type promotion of one of the input arguments specified?Instruction: Choose the option that best answers the question. Answer ChoicesMeasure myMeasure = new Measure(); System.out.println(myMeasure.addition(2.0, 3l));Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2, 3f));Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2f, 3));Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2, 3));
Solution
The correct answer is:
Measure myMeasure = new Measure(); System.out.println(myMeasure.addition(2, 3f));
In this line of code, the integer 2 is promoted to a float to match the method's parameter type. This is known as type promotion.
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You have a class Measure:public class Measure { public float addition(float a, int b){ return a + b; }}When executed, which lines of code will involve the type promotion of one of the input arguments specified?
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