public class Demo02ScannerSum { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("请输入第一个数字:"); int a = sc.nextInt(); System.out.println("请输入第二个数字:"); int b = sc.nextInt(); System.out.println("请输入第三个数字:"); int c = sc.nextInt(); //首先得到前两个最大值 int temp = a > b ? a : b; //再让原来的最大值和第三个值对比 int temp2 = temp > c ? temp : c; System.out.println("最大值为"+temp2); } }