Code reviewMediumcr-g084

Subject Repeated workLevel Mid–Senior~20 minCommon in Code quality & review interviewsIndustries Software development

Question

Review this Java validation routine.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix — specific and kind.

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Code to reviewjava

1public boolean allValid(List<String> tokens, Set<String> dictionary) {2    for (int i = 0; i < tokens.size(); i++) {3        String normalized = tokens.get(i).trim().toLowerCase();4        List<String> dict = new ArrayList<>(dictionary);   // copy for binarySearch5        Collections.sort(dict);6        if (Collections.binarySearch(dict, normalized) < 0) {7            return false;8        }9    }10    return true;11}

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