JAVA：BMI计算器使用

问题描述

我非常新的java尝试使用构造函数，公共实例方法和toString方法构建一个简单的BMI计算器。

  public class BMI {
 
 public BMI（String name，double height，double weight）{
 
} 
 
 public String getBMI（）{
 return（weight / height）; 
} 
 
 
 public String toString（）{
 return name +is+ height +tall and is+ weight + 
and BMI为+ getBMI（）; 
} 
 
 public static void main（String [] args）{
 
 
} 
  pre> 
 
 
我真的不知道我在做什么，所以所有的帮助是赞赏。如果您知道如何完成此操作，并且可以向我展示一种可以演示如何使用它将更加感激的主要方法。
 
 
 
谢谢：）
解决方案
您已经有一个代码，所以我只要提到BMI是重量（以kg为单位）除以高度（以m为单位）平方 
 
I am very new to java trying to build a simple BMI calculator using a constructor, a public instance method and a toString method. 
public class BMI {

public BMI(String name, double height, double weight){

}

public String getBMI() {
    return (weight/height);
  }


  public String toString() {
        return name + "is" + height + "tall and is " + weight +
                "and has a BMI of" + getBMI() ;
      }

public static void main(String[] args) {


}
i don't really know what i'm doing, so all help is appreciated. If you know how to complete this and can show me a main method which can demonstrate how to use it that would be even more appreciated.
thanks :)
 解决方案 
You already have a code so I'll just mention that BMI is weight (in kg) divided by height (in m) squared
                        
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