如何在 Java 中使用 double[] 参数填充 setter 方法？

Question

public class HealthInsurancePlan {
   
   //variable for setter & getter method
      private double coverage[] = {0.0,0.0};
    
  //setter
      public void setCoverage(double coverage[]){
          this.coverage = coverage;
      }
    
  //getter
      public double[] getCoverage() {
          return coverage;
      }
}

不，为什么下面的命令不起作用？
在 setter 方法中填充参数的正确方法是什么？

setCoverage(0.1,0.2);

谢谢。

Answer 1

double[] a = {2.3, 3.4 , 4.5}; 
HealthInsurancePlan plan = new HealthInsurancePlan();
plan.setCoverage(a);

或者您可以使用：

plan.setCoverage(new double[]{2.3, 3.4 , 4.5});

Answer 2

您可以使用 Java var args 以便它接受可变数量的对象并将其转换为对象数组。按如下方式更新您的 setter：

 //setter
 public void setCoverage(double... coverage){
    this.coverage = coverage;
 }

你可以打电话给 setCoverage(0.1,0.2)

如何在 Java 中使用 double[] 参数填充 setter 方法？

How to fill setter method with double[] argument in Java?

java

arrays

setter

arguments