java中怎么从控制台输入，说一下详细方法，本人是新手，谢谢

package test;
import java.util.Scanner;
class tt{
public static void main(String[] args){
Scanner input = new Scanner(System.in);
int j=0;
while(j<5)
{
System.out.println("请输入一个数字：");
int i=input.nextInt();
System.out.println("您输入的数字是："+i);
}
}
}
如果想得到字符串就用String i=input.next();

BufferedReader read = new BufferedReader(new InputStreamReader(
System.in));
try {
String line = read.readLine();
} catch (IOException e) {
e.printStackTrace();
}

public class M {
public static void main(String[] args) throws IOException {
BufferedReader buf = new BufferedReader(new InputStreamReader(System.in));
int a = buf.readLine();
System.out.println(buf.readLine());
}
}

自己按照自己的目的再改一下