使用 AI 做出决策

Java 中的 if/else

1        System.out.print("你多大了？ ");
2        int age = sc.nextInt();
3
4        if (age >= 18) {
5            System.out.println("你可以投票！");
6        } 
7        else {
8            System.out.println("抱歉，太小了。");
9        }

1public class ThermostatSimple {
2    public static void main(String[] args) {
3        int temperature = 15;
4
5        if (temperature < 18) {
6            System.out.println("切换到风扇模式");
7        } else {
8            System.out.println("保持制冷");
9        }
10    }
11}

1public class ThermostatFlexible {
2    public static void main(String[] args) {
3        int currentTemperature = 15;
4        int preferredTemperature = 18;
5
6        if (currentTemperature < preferredTemperature) {
7            System.out.println("切换到风扇模式");
8        } else {
9            System.out.println("保持制冷");
10        }
11    }
12}

智能家居应用的用户界面

1输入您偏好的舒适温度：22
2偏好舒适温度：22
3当前温度：25
4
5操作：开启空调
6
7提示：请等到非高峰时段以节省能源。

1import java.util.Scanner;
2
3public class ThermostatAdvisor {
4    public static void main(String[] args) {
5        // --- 变量 ---
6        int currentTemperature = 25;
7        Scanner sc = new Scanner(System.in);
8        System.out.print("请输入您偏好的舒适温度：");
9        int preferredTemperature = sc.nextInt();
10
11        // --- 决策逻辑 ---
12        System.out.println("偏好舒适温度：" + preferredTemperature);
13        System.out.println("当前温度：" + currentTemperature);
14
15        String advice;
16
17        if (currentTemperature < preferredTemperature) {
18            advice = "开启加热器";
19        } else if (currentTemperature > preferredTemperature) {
20            advice = "开启空调";
21        } else {
22            advice = "无需操作";
23        }
24
25        System.out.println("建议：" + advice);
26
27        // 节能额外提示
28        if (!advice.equals("无需操作")) {
29            System.out.println("提示：请等到非高峰时段以节省能源。");
30        }
31
32        // 结束语
33        System.out.println("保持舒适，节约能源！");
34    }
35}

1import java.util.Scanner;
2
3public class ThermostatAdvisor {
4    public static void main(String[] args) {
5        // --- 变量 ---
6        int currentTemperature = 25;
7        Scanner sc = new Scanner(System.in);
8        System.out.print("请输入您偏好的舒适温度：");
9        int preferredTemperature = sc.nextInt();
10
11        // --- 决策逻辑 ---
12        System.out.println("偏好舒适温度：" + preferredTemperature);
13        System.out.println("当前温度：" + currentTemperature);
14
15        String advice;
16
17        if (currentTemperature < preferredTemperature) {
18            advice = "开启加热器";
19        } else if (currentTemperature > preferredTemperature) {
20            advice = "开启空调";
21        } else {
22            advice = "无需操作";
23        }
24
25        System.out.println("建议：" + advice);
26
27        // 节能额外提示
28        if (!advice.equals("无需操作")) {
29            System.out.println("提示：请等到非高峰时段以节省能源。");
30        }
31
32        // 结束语
33        System.out.println("保持舒适，节约能源！");
34    }
35}

代码示例

1洗衣负载大小：7
2高峰时段：True
3建议：使用标准洗涤
4提示：请等到非高峰时段以节省电费。
5保持洁净，节约能源！

1public class SmartWashingMachine {
2    public static void main(String[] args) {
3        // --- 变量 ---
4        int laundryLoad = 7;  // 单位：千克
5        boolean isPeakHour = true;  // 非高峰时段请改为 false
6
7        // --- 决策逻辑 ---
8        System.out.println("洗衣负载大小：" + laundryLoad);
9        System.out.println("高峰时段：" + isPeakHour);
10
11        String advice;
12        if (laundryLoad < 5) {
13            advice = "使用快速洗涤";
14        } else if (laundryLoad == 5) {
15            advice = "两种模式均可";
16        } else {
17            advice = "使用标准洗涤";
18        }
19
20        System.out.println("建议：" + advice);
21
22        // 额外节能建议
23        if (isPeakHour && !advice.equals("两种模式均可")) {
24            System.out.println("提示：请等到非高峰时段以节省电费。");
25        }
26
27        System.out.println("保持洁净，节约能源！");
28    }
29}

1public class SmartWashingMachine {
2    public static void main(String[] args) {
3        // --- 变量 ---
4        int laundryLoad = 7;  // 单位：千克
5        boolean isPeakHour = true;  // 非高峰时段请改为 false
6
7        // --- 决策逻辑 ---
8        System.out.println("洗衣负载大小：" + laundryLoad);
9        System.out.println("高峰时段：" + isPeakHour);
10
11        String advice;
12        if (laundryLoad < 5) {
13            advice = "使用快速洗涤";
14        } else if (laundryLoad == 5) {
15            advice = "两种模式均可";
16        } else {
17            advice = "使用标准洗涤";
18        }
19
20        System.out.println("建议：" + advice);
21
22        // 额外节能建议
23        if (isPeakHour && !advice.equals("两种模式均可")) {
24            System.out.println("提示：请等到非高峰时段以节省电费。");
25        }
26
27        System.out.println("保持洁净，节约能源！");
28    }
29}