存储字符串和两个双打的java [英] Storing a string and two doubles java

问题描述

我已经写了一个程序，它给了我三个arrays.A字符串数组和两个救济金阵列....
但我想将它们保存在一件事（我不知道这是否会是一个数组或矩阵）.....

I have written a program which gives me three arrays.A string array and two dole arrays.... But I want to save them in one thing(I don't know if it would be an array or matrix).....

Forexample：
我有一个文件的读取与输入的是一样的东西：

Forexample: I have a file to read and the input is something like:

Apple  2.3  4.5
Orange 3.0  2.1
Pear   2.9  9.6
etc......

我已经进行了三次阵列，存储字符串和其他两家店双打的两列...

I already made three arrays, one that stores the name of strings and the other two stores the two columns of the doubles...

但我想整行（苹果2.3 4.5）储存在同一个事情，所以，如果我想找到我的苹果也获得苹果的相关值.....
可以请你们给我一个提示我该怎么办呢？
我认为有三个diminutional阵列，但我无法弄清楚如何初始化，因为它有一个字符串值和两个双打......

But I want to store the whole row "(apple 2.3 4.5)" in one thing so that if I want to find apple I also get related values of apple..... Can you please guys give me a hint how can I do that? I thought of having three diminutional array but I could not figure out how to initialise because it will have one string value and two doubles......

我不知道该怎么办....
任何帮助将是非常美联社preciated ....
先谢谢了。

I have no clue what to do.... Any help would be highly appreciated.... Thanks in advance.

推荐答案

一个很好的通用的解决方案：

A nice generic solution:

public class Triple<L, K, V> {

    private final L first;
    private final K second;
    private final V third;

    public Triple(L first, K second, V third) {
        this.first = first;
        this.second = second;
        this.third = third;
    }

    public L getFirst() {
        return this.first;
    }

    public K getSecond() {
        return this.second;
    }

    public V getThird() {
        return this.third;
    }

}

哪些可实施为这样：

Which can be implemented as such:

Triple<String, Integer, Integer> myTriple = new Triple<>("Hello world", 42, 666);

但真正的概念重新presenting数据点为对象在code。如果你有一组数据（我有一个字符串和两个整数意味着的东西的），那么你会希望它封装一个类下。

But the real concept here is representing a point of data as an object in your code. If you have a set of data ("I have a string and two ints that mean something"), then you would want to encapsulate it under a single class.

这篇关于存储字符串和两个双打的java的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！