# 基本步驟
## 鍵盤錄入數據的步驟
A:導包(位置放到class定義的上面)
> import java.util.Scanner;
B:創建對象
> Scanner sc = new Scanner(System.in);
C:接收數據
> int x = sc.nextInt();
例：判斷出三個數中最大的數
```
package com.igeek.day01;
import java.util.Scanner;
public class Test6 {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
System.out.println("請輸入數字a:");
int a =sc.nextInt();
System.out.println("請輸入數字b:");
int b =sc.nextInt();
System.out.println("請輸入數字c:");
int c =sc.nextInt();
int max = (a>b)?a:b;
int result = (max>c)?max:c;
System.out.println(result);
}
}
```
