Question

我正在处理一个项目并且我不断收到错误消息说错误：在尝试编译时，不兼容的类型int []无法转换为int。错误说它在第17行。我已经尝试将所有内容更改为双打，并且我为双打获得了相同的错误。我不知道为什么数字无法存储，解释会非常有用。

    int[][] houseNumbers;
    int numberOfHouses, homeNumber, numberOfPeople, house, people;
    System.out.print("How many houses in the street?: ");
    numberOfHouses = keyboard.nextInt();
    houseNumbers = new int[numberOfHouses][];
    for (house = 0; house < houseNumbers.length; house++){
        System.out.print("What is the next house number? : ");
        houseNumbers[house] = keyboard.nextInt();
        System.out.print("How many people live in house number" + houseNumbers[house] + ":");
        numberOfPeople = keyboard.nextInt();
        houseNumbers[house] = new int[numberOfPeople];
        for (people = 0; people < houseNumbers[house].length; people++){
            System.out.print("What is the age of person " + people + ": ");
            houseNumbers[house][people] = keyboard.nextInt();
        }
    }

Answer 1

你有几个错误。最大的一个是尝试将int分配给int数组。数组是（一个或多个）项的块。您必须先使用new分配块，然后才能访问各个项目。你的编译器告诉你这个。学习理解编译器的错误和警告。

错误1：

/* houseNumbers[house] -> */ homeNumber = keyboard.nextInt();

错误2：

System.out.print("How many people live in house number" + /* houseNumbers[house] -> */ homeNumber + ":");

错误：不兼容的类型：int []无法转换为int

1 个答案: