Map<String，Integer>获取四舍五入整数百分比

import java.text.NumberFormat;
import java.util.HashMap;
import java.util.Map;

public class PercentageCalculator {
    public static void main(String[] args) {
        Map<String, Integer> percentageMap = new HashMap<>();
        percentageMap.put("A", 75);
        percentageMap.put("B", 82);
        percentageMap.put("C", 68);

        for (Map.Entry<String, Integer> entry : percentageMap.entrySet()) {
            String key = entry.getKey();
            Integer value = entry.getValue();
            double percentage = (double) value / 100;
            NumberFormat format = NumberFormat.getPercentInstance();
            format.setMaximumFractionDigits(0);
            String formattedPercentage = format.format(percentage);
            System.out.println(key + ": " + formattedPercentage);
        }
    }
}

A: 75%
B: 82%
C: 68%