[Solved] What will be the output of this code?class Sample { Sample() { this(5); System.out.println("Default"); } Sample(int x) { this("Hello"); System.out.println("Int: " + x); } Sample(String s) { System.... | Java

Java - Inheritance

What will be the output of this code?

class Sample {
  Sample() {
    this(5);
    System.out.println("Default");
  }
  Sample(int x) {
    this("Hello");
    System.out.println("Int: " + x);
  }
  Sample(String s) {
    System.out.println("String: " + s);
  }
  public static void main(String[] args) {
    new Sample();
  }
}

AString: Hello Default Int: 5

BDefault Int: 5 String: Hello

CString: Hello Int: 5 Default

DInt: 5 String: Hello Default

Step-by-Step Solution

Solution:

Step 1: Follow constructor chaining order
The no-arg constructor calls this(5), which calls the int constructor.
Step 2: Continue chaining inside int constructor
The int constructor calls this("Hello"), which prints "String: Hello" first.
Step 3: Print statements after chaining
After the string constructor finishes, int constructor prints "Int: 5", then no-arg constructor prints "Default".
Final Answer:
String: Hello Int: 5 Default -> Option C
Quick Check:
Chaining nests calls in order [OK]

Quick Trick: Nested this() calls run deepest constructor first [OK]

Common Mistakes:

Ignoring nested chaining order
Mixing print order
Assuming constructors run independently

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More Java Quizzes

What will be the output of this code?

Step 1: Follow constructor chaining order

Step 2: Continue chaining inside int constructor

Step 3: Print statements after chaining

Final Answer:

Quick Check:

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