SnIPPETsX › public class Main

public class Main

Java · updated Oct 14, 2026 · 76 lines

Main.java

import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Scanner;

import java.io.IOException;

public class Main {
    public static void main(String[] args) throws IOException {
        int ptr = 0;
        int[] tape = new int[256];
        Scanner scanner = new Scanner(System.in);
        String code = Files.readString(Path.of("Main.bf"));
        for (int pc = 0; pc <= code.length() - 1; pc++) {
            for (int i = 0; i <= 255; i++) {
                if (tape[i] > 255) {
                    tape[i] = 0;
                }
            }
            char c = code.charAt(pc);
            switch(c) {
                case '>':
                    ptr++;
                break;
                case '<':
                    ptr--;
                break;
                case '+':
                    tape[ptr]++;
                break;
                case '-':
                    tape[ptr]--;
                break;
                case ',':
                    String input = scanner.nextLine();
                    tape[ptr] = input.charAt(0);
                break;
                case '.':
                    System.out.print(String.valueOf((char) tape[ptr]));
                break;
                case '[':
                    if (tape[ptr] == 0) {
                        int dep = 1;
                        while (dep > 0) {
                            pc++;
                            char cc = code.charAt(pc);
                            if (cc == '[') {
                                dep++;
                            } else if (cc == ']') {
                                dep--;
                            }
                        }
                    }
                break;
                case ']':  
                    if (tape[ptr] != 0) {
                        int dep = 1;
                        while (dep > 0) {
                            pc--;
                            char cc = code.charAt(pc);
                            if (cc == '[') {
                                dep--;
                            } else if (cc == ']') {
                                dep++;
                            }
                        }
                    }
                break;
            }
        }
    scanner.close();
    }
}

Main.bf

,...,,><><><>

file-3.txt

Main.txt

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