Java 代码优化: 使用 getOrDefault() 提高效率

private void setSuggestedLevelInfo(final String level, final Map<String, Long> suggestedLevelGroup, final int allSuggestedLevelSumSum, final SuggestedLevelSummaryVO suggestedLevelVO) { final Long suggestedLevelSum = suggestedLevelGroup.getOrDefault(level, DEFAULT_NUMBER_OF_PEOPLE); final String suggestedPercentage = calculatePercentage(suggestedLevelSum, allSuggestedLevelSumSum); switch (level) { case SheetDataConstants.EXCELLENT_SUGGESTED_LEVEL: suggestedLevelVO.setExcellentSum(suggestedLevelSum); suggestedLevelVO.setExcellentPercentage(suggestedPercentage); break; case SheetDataConstants.BE_COMPETENT_SUGGESTED_LEVEL: suggestedLevelVO.setCompetentSum(suggestedLevelSum); suggestedLevelVO.setCompetentPercentage(suggestedPercentage); break; case SheetDataConstants.BASIC_COMPETENT_SUGGESTED_LEVEL: suggestedLevelVO.setBaseCompetentSum(suggestedLevelSum); suggestedLevelVO.setBaseCompetentPercentage(suggestedPercentage); break; case SheetDataConstants.INCOMPETENT_SUGGESTED_LEVEL: suggestedLevelVO.setIncompetentSum(suggestedLevelSum); suggestedLevelVO.setIncompetentPercentage(suggestedPercentage); break; default: break; } }