如何从给定的值中找到 Java 中 STRING 数组的索引? [英] How to find index of STRING array in Java from a given value?

问题描述

我想知道数组中是否有一种用于 Java 的本地方法来获取给定值的表索引?

I wanted to know if there's a native method in array for Java to get the index of the table for a given value ?

假设我的表包含这些字符串:

Let's say my table contains these strings :

public static final String[] TYPES = {
        "Sedan",
        "Compact",
        "Roadster",
        "Minivan",
        "SUV",
        "Convertible",
        "Cargo",
        "Others"
    };

假设用户必须输入汽车的类型，然后程序在后台获取该字符串并获取它在数组中的位置.

Let's say the user has to enter the type of car and that then in the background the program takes that string and get's it's position in the array.

所以如果这个人进入:Sedan它应该占据位置 0 并将其存储在我的程序创建的 Cars 对象中...

So if the person enters : Sedan It should take the position 0 and store's it in the object of Cars created by my program ...

推荐答案

String carName = // insert code here
int index = -1;
for (int i=0;i<TYPES.length;i++) {
    if (TYPES[i].equals(carName)) {
        index = i;
        break;
    }
}

在此index之后是您的汽车的数组索引，如果不存在则为-1.

After this index is the array index of your car, or -1 if it doesn't exist.

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