import java.util.Scanner;public class Hello { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("请输入体重(KG):"); float weight = scanner.nextFloat(); System.out.println("请输入身高(M):"); float height = scanner.nextFloat(); float BMI = weight / (height * height); if (BMI < 18.5) { System.out.printf("BMI 为:%.1f,过轻。", BMI); } else if (BMI >= 18.5 && BMI < 25) { System.out.printf("BMI 为:%.1f,正常。", BMI); } else if (BMI >= 25 && BMI < 28) { System.out.printf("BMI 为:%.1f,过重。", BMI); } else if (BMI >= 28 && BMI < 32) { System.out.printf("BMI 为:%.1f,肥胖。", BMI); } else if (BMI >= 32) { System.out.printf("BMI 为:%.1f,非常肥胖。", BMI); } else { System.out.println("???"); } }}
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