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如何设置Java边界值

小樊
82
2024-09-09 11:49:06
栏目: 编程语言

在 Java 中,设置边界值通常是为了确保数据在某个范围内

  1. 使用 Math.min()Math.max() 方法:
public class BoundaryValueExample {
    public static void main(String[] args) {
        int value = 10;
        int lowerBound = 5;
        int upperBound = 8;

        int boundedValue = Math.min(Math.max(value, lowerBound), upperBound);
        System.out.println("Bounded value: " + boundedValue);
    }
}
  1. 使用条件语句(如 if-else):
public class BoundaryValueExample {
    public static void main(String[] args) {
        int value = 10;
        int lowerBound = 5;
        int upperBound = 8;

        int boundedValue;
        if (value< lowerBound) {
            boundedValue = lowerBound;
        } else if (value > upperBound) {
            boundedValue = upperBound;
        } else {
            boundedValue = value;
        }
        System.out.println("Bounded value: " + boundedValue);
    }
}
  1. 自定义方法:
public class BoundaryValueExample {
    public static void main(String[] args) {
        int value = 10;
        int lowerBound = 5;
        int upperBound = 8;

        int boundedValue = boundValue(value, lowerBound, upperBound);
        System.out.println("Bounded value: " + boundedValue);
    }

    private static int boundValue(int value, int lowerBound, int upperBound) {
        return Math.min(Math.max(value, lowerBound), upperBound);
    }
}

这些示例都将确保 boundedValuelowerBoundupperBound 之间。如果 value 小于 lowerBound,则 boundedValue 将等于 lowerBound;如果 value 大于 upperBound,则 boundedValue 将等于 upperBound;否则,boundedValue 将等于 value

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