如何在java中调用带有数组参数的方法？
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How do I invoke a method with array parameter in java?
提问by user3054791
I have an assignment in which I have to perform operations on array in Java, I have to make separate functions of each operation, which I will write but I can not figure out how to invoke a method with array parametres. I usually program in c++ but this assignment is in java. If any of you can help me, I'd be really thankful. :)
我有一个任务，我必须在 Java 中对数组执行操作，我必须为每个操作创建单独的函数，我将编写这些函数，但我无法弄清楚如何使用数组参数调用方法。我通常用 c++ 编程，但这个作业是用 java 编写的。如果你们中有人能帮助我，我将不胜感激。:)
public class HelloJava {
static void inpoot() {
Scanner input = new Scanner(System.in);
int[] numbers = new int[10];
System.out.println("Please enter 10 numbers ");
for (int i = 0; i < numbers.length; i++) {
numbers[i] = input.nextInt();
}
}
static void outpoot(int[] numbers) {
for(int i = 0; i < numbers.length; i++) {
System.out.println(numbers[i]);
}
}
public static void main(String[] args) {
inpoot();
outpoot(numbers); //can not find the symbol
}
}
采纳答案by Julián Urbano
Your inpootmethod has to return the int[]array, and then you pass it to outpootas a parameter:
您的inpoot方法必须返回int[]数组，然后将其outpoot作为参数传递给：
public class HelloJava {
static int[] inpoot() { // this method has to return int[]
Scanner input = new Scanner(System.in);
int[] numbers = new int[10];
System.out.println("Please enter 10 numbers ");
for (int i = 0; i < numbers.length; i++) {
numbers[i] = input.nextInt();
}
return numbers; // return array here
}
static void outpoot(int[] numbers) {
for(int i = 0; i < numbers.length; i++) {
System.out.println(numbers[i]);
}
}
public static void main(String[] args) {
int[] numbers = inpoot(); // get the returned array
outpoot(numbers); // and pass it to outpoot
}
}
回答by Anthony Porter
When you call outpoot it should be outpoot (numbers);
当您调用 outpoot 时，它应该是 outpoot（数字）；
