Question

java怎样从键盘读取整型数据

Answer 1

public static void main(String[] args) throws ParseException {
Scanner in = new Scanner(System.in);
System.out.print("请输入整型数据：");
int i = in.nextInt();
System.out.print("你输入的数据是："+i);

}

Answer 2

Scanner in=new Scanner(System.in);
while(in.hasNexttInt()){
int num=in.nextInt();
System.out.println(num);
}

Answer 3

简单的是
Scanner in=new Scanner(System.in);
int repeat=in.nextInt();

Answer 4

import java.io.*;

public class ReadInt(){
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
int num;
System.out.println("请输入一个整数");
try{
num=Integer.parseInt(br.readLine());
}catch(IOException e){
e.printStackTrace();
}

}

Answer 5

四楼好孩子,教科书式的经典回答.