Testdome Java Questions And Answers

public int detachWagonFromLeft() return wagons.pollFirst();

Requires finding indices of two numbers that add up to a specific sum, often optimized using a HashMap . Java Online Test | TestDome testdome java questions and answers

Before submitting a TestDome Java task:

import java.util.LinkedList;

Implement a IceCreamShop class with:

(LinkedList)

: While the nested loop (O(n²)) works for simple tests, using a HashMap can optimize this to O(n) complexity, which may be required for performance-based questions. 2. String Manipulation and Formatting public int detachWagonFromLeft() return wagons