linter/BlankPrintlnCheck.java


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// Nik Johnson
// 2-24-2024
// TA: Andy Ruan

import java.util.*;

// checks lines for the characters "System.out.println("")"
public class BlankPrintlnCheck implements Check {

    // if the line being checked has a blank println statement, return a new error (code 3)
    // takes line and line number
    // returns error inside optional 
    public Optional<Error> lint(String line, int lineNumber) {
        if (line.contains("System.out.println(\"\")")) {
            return Optional.of(new Error(3, lineNumber, "Line contains blank print statement"));
        }
        return Optional.empty();
    }
}