What will this small program output? class Main { private static void foo() { x = 7; } private static int x = public static void main(String[] args) { int x = 24; foo(); System.out.println(x);

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
icon
Related questions
Question
### What will this small program output?

```java
class Main {
    private static void foo() {
        x = 7;
    }

    private static int x = 13;

    public static void main(String[] args) {
        int x = 24;
        foo();
        System.out.println(x);
    }
}
```

#### Explanation:
1. The class `Main` includes a static method `foo()`, a static integer variable `x`, and the `main` method.
2. The `foo()` method sets the static variable `x` to 7.
3. The static variable `x` is initially set to 13.
4. Inside the `main` method, a local `x` variable is declared and initialized to 24, which shadows the static variable `x`.
5. The `foo()` method is called, which changes the value of the static variable `x` to 7, but does not affect the local variable `x` declared inside `main`.
6. Finally, the `main` method prints the local variable `x`, which is still 24.

#### Expected Output:
```plaintext
24
```
Transcribed Image Text:### What will this small program output? ```java class Main { private static void foo() { x = 7; } private static int x = 13; public static void main(String[] args) { int x = 24; foo(); System.out.println(x); } } ``` #### Explanation: 1. The class `Main` includes a static method `foo()`, a static integer variable `x`, and the `main` method. 2. The `foo()` method sets the static variable `x` to 7. 3. The static variable `x` is initially set to 13. 4. Inside the `main` method, a local `x` variable is declared and initialized to 24, which shadows the static variable `x`. 5. The `foo()` method is called, which changes the value of the static variable `x` to 7, but does not affect the local variable `x` declared inside `main`. 6. Finally, the `main` method prints the local variable `x`, which is still 24. #### Expected Output: ```plaintext 24 ```
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Files and Directory
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education