问题
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. :)
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
}
}
回答1:
Your inpoot
method has to return the int[]
array, and then you pass it to outpoot
as a parameter:
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2:
When you call outpoot it should be outpoot (numbers);
来源:https://stackoverflow.com/questions/20314305/how-do-i-invoke-a-method-with-array-parameter-in-java