트러블 쓰는 배열

Question

배열을 쓰려고합니다. 그 설명은 가장이에 의해 설명 :

import java.util.*; 
import java.text.*; 
public class DailyCatch 
{ 
    private int fishermanID, fisherID; 
    private String dateOfSample, date; 
    private double[] weights; 
    private double[] fishCaught = new double[10]; 
    private int currWeight = 0; 

public DailyCatch (int fishermanID, String dateOfSample, String weightsAsString) 
{ 
    fisherID = fishermanID; 
    date = dateOfSample; 
    // Parse the the weigths string and store the list of weights in this array. 
    weights = readWeights(weightsAsString); 
} 

public DailyCatch (int fishermanID, String dateOfSample) 
{ 
    fisherID = fishermanID; 
    date = dateOfSample; 
} 

public void addFish(double weight) 
{ 
    if (currWeight > 10) 
    { 
    // array full 
} 
    else 
{ 
    fishCaught[currWeight] = weight; 
    currWeight += 1; // update current index of array 
    } 
} 

private double[] readWeights(String weightsAsString) 
{ 
    String[] weightsArr = weightsAsString.split("\\s+"); 
    double[] weights = new double[weightsArr.length]; 

    for (int i = 0; i < weights.length; i++) { 
     double weight = Double.parseDouble(weightsArr[i]); 
    } 
    return weights; 
} 

public void printWeights() 
{ 
    for (int i = 0; i < fishCaught.length; i++) 
    { 
    System.out.println(fishCaught[i]); 
    } 
} 

public String toString() 
{ 
    return "Fisherman ID: " + fisherID + "\nDate: " + date + "\nWeights: " + Arrays.toString(weights); 
} 

}

이 나는이 프로젝트에 함께 일하고 있어요 테스트 파일 :

Each day a fisherman will weigh in at most 10 fish, the weight of which you are required to store in an array of double values.

이것은 내가 지금까지 무엇을 가지고

public class BigBass 
{ 
public static void main (String[]args) 
{ 
DailyCatch monday1 = new DailyCatch(32, "4/1/2013", "4.1 5.5 2.3 0.5 4.8 1.5"); 
System.out.println(monday1); 

DailyCatch monday2 = new DailyCatch(44, "4/1/2013"); 
monday2.addFish(2.1); 
monday2.addFish(4.2); 
System.out.println(monday2); 
} 
} 

도움을 주시면 대단히 감사하겠습니다.

Answer 1

코드 중복을 줄이기 위해 오버로드 된 생성자를 업데이트했습니다. 생성자는 자신을 호출 할 수 있습니다. 여러 생성자가 동일한 멤버 변수를 설정하면 생성자가 직접 호출 할 수 있습니다.

배열의 현재 색인 (0에서 시작)을 기반으로 배열에 가중치를 단순히 추가하는 addFish 메서드를 추가했습니다. 새로운 물고기 무게가 추가 될 때마다 다음 물고기가 다음 색인에 추가 될 수 있도록 currWeight가 증가됩니다.

readWeights 메서드는 전달 된 문자열을 공백으로 구분 된 토큰으로 구문 분석합니다. 각 토큰은 addFish 메소드를 사용하여 클래스의 fishCaught 배열에 저장됩니다.

public class DailyCatch 
{ 
    private int fishermanID, fisherID; 
    private String dateOfSample, date; 
    private double[] fishCaught = new double[10]; 
    private int currWeight = 0; 

    public DailyCatch() { } 

    public DailyCatch (int fishermanID, String dateOfSample) 
    { 
    fisherID = fishermanID; 
    date = dateOfSample; 
    } 

    public DailyCatch (int fishermanID, String dateOfSample, String weight) 
    { 
    this(fishermanID, dateOfSample); 
    readWeights(weight); 
    } 

    public void addFish(double weight) 
    { 
    if (currWeight > 10) 
    { 
     // array full 
    } 
    else 
    { 
     fishCaught[currWeight] = weight; 
     currWeight += 1; // update current index of array 
    } 
    } 

    private void readWeights(String weightsAsString) 
    { 
    String[] weightsRead = weightsAsString.split("\\s+"); 
    for (int i = 0; i < weightsRead.length; i++) 
    { 
     this.addFish(Double.parseDouble(weightsRead[i])); 
    } 
    } 

    public String toString() 
    { 
    return "Fisherman ID: " + fisherID + "\nDate:" + date + "\nWeights: " + Arrays.toString(fishCaught); 
    } 

    public void printWeights() 
    { 
    for (int i = 0; i < fishCaught.length; i++) 
    { 
      System.out.println(fishCaught[i]); 
    } 
    } 
} 

Answer 2

public class DailyCatch 
{ 
    private int fishermanID, fisherID; 
    private String dateOfSample, date; 
    private double[] weights; 

    public DailyCatch (int fishermanID, String dateOfSample, String weightsAsString) 
    { 
     fisherID = fishermanID; 
     date = dateOfSample; 
     // Parse the string and store the list of weights in this array. 
     weights = readWeights(weightsAsString); 
    } 

    private double[] readWeights(String weightsAsString) 
    { 
     String[] weightsArr = weightsAsString.split("\s+"); 
     double[] weights = new double[weightsArr.length]; 

     for (int i = 0; i < weights.length; i++) { 
      double weight = Double.parseDouble(weightsArr[i]); 
     } 
     return weights; 
    } 

    public String toString() 
    { 
     return "Fisherman ID: " + fisherID + "\nDate: " + date + "\nweights: " + Arrays.toString(weights); 
    } 
}