import java.util.Scanner;
public class smth {
Scanner input = new Scanner(System.in);
int array[]={};
}
我接下来要做什么,将我从键盘输入的每个数字存储到数组中。
答案 0 :(得分:3)
涉及Scanner对象的while()
循环将是有益的。每次循环都不需要重新初始化/重新声明它。
import java.util.Scanner;
public class smth {
final int SIZE = 10; // You need to define a size.
Scanner input = new Scanner(System.in);
int array[]= new int[SIZE];
public void readFromTerminal() {
System.out.println("Read lines, please enter some other character to stop.");
String in = input.nextLine();
while ( ) { } // I encourage you to fill in the blanks!
}
}
[编辑]如果您希望用户能够输入“无限”个整数,那么ArrayList<Integer>
会更理想。
import java.util.Scanner;
public class smth {
Scanner input = new Scanner(System.in);
ArrayList<Integer> array = new ArrayList<Integer>(); // Please reference the documentation to see why I'm using the Integer wrapper class, and not a standard int.
public void readFromTerminal() {
System.out.println("Read lines, please enter some other character to stop.");
String in = input.nextLine();
while ( ) { } // I encourage you to fill in the blanks!
}
}
答案 1 :(得分:1)
Scanner input = new Scanner(System.in);
ArrayList<Integer> al = new ArrayList<Integer>();
int check=0;
while(true){
check = input.nextInt();
if(check == 0) break;
al.add(check);
}
for (int i : al) {
System.out.print(i);
}
}
这就是我所做的。当用户输入“0”时,它会中断。
答案 2 :(得分:0)
您希望根据某些条件将其包装在while循环中。现在,它可以只是while(true)...
,但是稍后您将要使用将在某个时刻终止的条件。