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🧾 Java: Declare Multiple Variables – Clean and Efficient Code

In real-world programming, you’ll often need to create multiple variables of the same type. Java gives you powerful, compact syntax to do this efficiently — and at GoNimbus, we show you how to use it like a pro.

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🔁 Declare Several Variables in One Line

Instead of writing repetitive lines for variables of the same type:

int math = 80;
int science = 85;
int english = 90;

You can declare and assign them together using commas:

int math = 80, science = 85, english = 90;

🖥️ Output example:

System.out.println(math + science + english); // Output: 255

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📌 Syntax:

dataType var1 = value1, var2 = value2, var3 = value3;

This is cleaner, saves space, and improves readability.

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🎯 Assign Same Value to Multiple Variables

Need to initialize multiple variables with the same value?

int a, b, c;
a = b = c = 100;
System.out.println(a + b + c); // Output: 300

⚠️ In this case, assignment is evaluated right to left. So, c gets 100, then b = c, then a = b.

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👩‍💻 GoNimbus Practice Example

public class MultiVariableDemo {
  public static void main(String[] args) {
    int java = 95, python = 90, sql = 85;
    System.out.println("Total Score: " + (java + python + sql));

    int a, b, c;
    a = b = c = 50;
    System.out.println("Sum of equal values: " + (a + b + c));
  }
}

🖥️ Output:

Total Score: 270
Sum of equal values: 150

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🧠 Why Use This Approach?

✅ Cleaner syntax — especially when declaring configuration variables, scores, or counters
✅ Less repetition — reduces the chance of typos
✅ Better for grouped logic — if variables belong to the same context, group them together

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❗ Pro Tips from GoNimbus

• 🔤 Works with all data types (int, float, char, boolean, etc.)
• ✅ Use this format only when it improves clarity — avoid overloading one line with too much logic
• 🔐 Avoid assigning same value unless it’s logically valid (e.g., all scores aren’t always the same)

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🔜 Coming Up Next: Java Data Types

Now that you know how to declare variables efficiently, it’s time to explore the full range of data types Java offers — from numbers and characters to booleans and beyond.

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