找不到构造函数符号

Question

Here is my code for my Ingredient class:

public class Ingredient {

 /* Attribute declarations */
 private String name; //  name
 private int calorieCount; //calorie count

  /* Constructor */
 public Ingredient(String name, int calorieCount) {
  this.name = name;
  this.calorieCount = calorieCount;
 }

 public String getName(){
  return name;
 }

  public int getCalorieCount(){
  return calorieCount;
 }

  public static void main (String[] args)
  {
    Ingredient item1 = new Ingredient ("Butter", "100");
    System.out.println(item1);
  }
}

When I try and run it, I get a compiler error:

1 error found:
File: C:\eclipse\workspace\Assignment NEW1\Ingredient.java  [line: 28]
Error: C:\eclipse\workspace\Assignment NEW1\Ingredient.java:28: cannot find symbol
symbol  : constructor Ingredient(java.lang.String,java.lang.String)
location: class Ingredient

What am I doing wrong?

Answer 1

You are passing 100 as string in your constructor: -

Ingredient item1 = new Ingredient ("Butter", "100");

Change it to: -

Ingredient item1 = new Ingredient ("Butter", 100);

Answer 2

You are supposed to pass second parameter as int. you passed string "100“， however. change it to number 100 instead of "100".

Answer 3

每当你编译的一些符号时间误差是找不到的，永远记住，你已经在使用你的程序的东西不存在或无法使用现有的类路径中找到。