Explanations “Top Java Quiz Questions”

What is the result of the following statements?

1: public class Test {
2: public void print(byte x) {
3: System.out.print("byte");
4: }
5: public void print(int x) {
6: System.out.print("int");
7: }
8: public void print(float x) {
9: System.out.print("float");
10: }
11: public void print(Object x) {
12: System.out.print("Object");
13: }
14: public static void main(String[] args) {
15: Test t = new Test();
16: short s = 123;
17: t.print(s);
18: t.print(true);
19: t.print(6.789);
20: }
21: }

❌ A. bytefloatObject
❌ B. intfloatObject
❌ C. byteObjectfloat
❌ D. intObjectfloat
✅ E. intObjectObject
❌ F. byteObjectObject

Explanation:
The argument on line 17 is a short. It can be promoted to an int, so print() on line 5 is invoked. The argument on line 18 is a boolean. It can be autoboxed to a boolean, so print() on line 11 is invoked. The argument on line 19 is a double. It can be autoboxed to a double, so print() on line 11 is invoked. Therefore, the output is intObjectObject and the correct answer is option E.

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459 viewsApr 26, 2021 at 11:43

What is the result of the following statements?

1: public class Test {
2: public void print(byte x) {
3: System.out.print("byte");
4: }
5: public void print(int x) {
6: System.out.print("int");
7: }
8: public void print(float x) {
9: System.out.print("float");
10: }
11: public void print(Object x) {
12: System.out.print("Object");
13: }
14: public static void main(String[] args) {
15: Test t = new Test();
16: short s = 123;
17: t.print(s);
18: t.print(true);
19: t.print(6.789);
20: }
21: }

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