Java Arrays Real-Life Examples

📦 Java Arrays – Real-Life Examples

Arrays are widely used in Java to store collections of similar data. Here are some practical real-life examples of arrays.


1️⃣ Store Student Marks


 

📌 Output:

Average marks: 86.6

2️⃣ Store Names of Employees

📌 Output:

Employee List:
John
Alice
Bob
Mary

3️⃣ Daily Temperature of a Week


 

📌 Output:

Day 1 temperature: 30°C
Day 2 temperature: 32°C
Day 3 temperature: 31°C
Day 4 temperature: 29°C
Day 5 temperature: 28°C
Day 6 temperature: 27°C
Day 7 temperature: 33°C

4️⃣ Shopping Cart Prices


 

📌 Output:

Total price: $1199.48

5️⃣ Track Attendance (Boolean Array)

📌 Output:

Day 1: Present
Day 2: Present
Day 3: Absent
Day 4: Present
Day 5: Absent

6️⃣ Product IDs (Integer Array)


 

📌 Output:

Product IDs in the store:
101
102
103
104
105

🧠 Key Takeaways

  • Arrays store multiple values of the same type.

  • Useful for real-life data like marks, names, prices, temperatures, attendance, IDs.

  • Loops (for, for-each, while) make it easy to iterate and process data.

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