[Solved] What will be the output of the following Java code?class Test { Test() { this(5); System.out.print("A"); } Test(int x) { System.out.print("B"); } public static void main(String[] args) { new Test();... | Java

Java - Inheritance

What will be the output of the following Java code?

class Test {
  Test() {
    this(5);
    System.out.print("A");
  }
  Test(int x) {
    System.out.print("B");
  }
  public static void main(String[] args) {
    new Test();
  }
}

AAB

BBA

CA

DB

Step-by-Step Solution

Solution:

Step 1: Trace constructor calls
Creating new Test() calls the no-arg constructor, which calls Test(int x) first (prints "B"), then prints "A".
Step 2: Determine output order
Since Test(int x) prints "B" first, then control returns to no-arg constructor which prints "A", output is "BA".
Final Answer:
BA -> Option B
Quick Check:
Constructor chaining prints B then A [OK]

Quick Trick: Constructor chaining prints inner constructor output first [OK]

Common Mistakes:

Assuming outer constructor prints before inner
Confusing order of constructor calls
Ignoring that this() must be first line

Master "Inheritance" in Java

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

More Java Quizzes

What will be the output of the following Java code?

Step 1: Trace constructor calls

Step 2: Determine output order

Final Answer:

Quick Check:

Want More Practice?