Archives: Logical Programs

Remove elements with Condition: preserve the original order

Problem Statement: Write a Java program to remove duplicates from an ArrayList while preserving the original order. Here’s a Java program that demonstrates how to remove duplicates from an ArrayList while preserving the original order. I’ll provide an explanation of the program’s logic. OUTPUT: Original List: [10, 20, 30, 20, 40, 10]List after removing duplicates: …

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List to Array Conversion

Problem Statement: Write a Java program to Convert an ArrayList of strings into a string array. Here’s a Java program that demonstrates how to convert an ArrayList of strings into a string array. I’ll provide an explanation of the program’s logic. OUTPUT: String Array:HelloWorldJavaProgramming Explanation: The toArray() method converts the ArrayList of strings into a …

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Create a stack using an ArrayList

Problem Statement: Create a stack using an ArrayList and implement push, pop, and peek operations. Here’s a Java program that demonstrates how to create a stack using an ArrayList and implements the push, pop, and peek operations. I’ll provide an explanation of the program’s logic. OUTPUT: Peek: 30Stack size: 3Pop: 30Pop: 20Is stack empty? false …

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List Manipulation: Reverse a List

Problem Statement: Implement a Java program to reverse a List without using the built-in Collections.reverse() method. Here’s a Java program that reverses a list without using the built-in Collections.reverse() method. I’ll provide a step-by-step explanation of the logic used in the program. OUTPUT: Original List: [1, 2, 3, 4, 5]Reversed List: [5, 4, 3, 2, …

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