Example: Remove Brackets by Iteration in Java

// Remove Brackets by Iteration
import java.util.Scanner;

// Main class containing the entry point of the program
public class Main {
    public static void main(String[] args) {
        // Step 1: Define the algebraic expression
        String expressionWithBrackets = "(10 + [5 * (x - y)] / {2})";
        System.out.println("Original Expression: " + expressionWithBrackets);

        // Step 2: Initialize a StringBuilder to efficiently build the new string
        StringBuilder sb = new StringBuilder();

        // Step 3: Iterate through each character of the expression
        for (char c : expressionWithBrackets.toCharArray()) {
            // Step 4: Check if the character is a bracket
            if (c != '(' && c != ')' && c != '[' && c != ']' && c != '{' && c != '}') {
                // Step 5: If it's not a bracket, append it to the StringBuilder
                sb.append(c);
            }
        }

        // Step 6: Convert the StringBuilder content to a String
        String expressionWithoutBrackets = sb.toString();

        // Step 7: Print the modified expression
        System.out.println("Expression without Brackets (Iteration): " + expressionWithoutBrackets);

        // Example with another expression
        String anotherExpression = "{2 * (a + b)} - [c / (d + e)]";
        System.out.println("\nOriginal Expression: " + anotherExpression);
        StringBuilder sb2 = new StringBuilder();
        for (char c : anotherExpression.toCharArray()) {
            if (c != '(' && c != ')' && c != '[' && c != ']' && c != '{' && c != '}') {
                sb2.append(c);
            }
        }
        System.out.println("Expression without Brackets (Iteration): " + sb2.toString());
    }
}