day08--Math工具类
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@@ -13,4 +13,21 @@ public static double floor(double a) :返回小于等于参数最大的整数
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public static long round(double a) :返回最接近参数的 long。(相当于四舍五入方法)
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*/
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public class Demo15 {
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public static void main(String[] args) {
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//取值范围: -10.8 ~5.9
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double start = -10.8;
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double end = 5.9;
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//定义计数的变量
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int count = 0;
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for (double i = Math.ceil(start); i < end; i++) {
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//判断条件:绝对值>6||<2.1
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if (Math.abs(i) > 6 || Math.abs(i) < 2.1) {
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System.out.println(i);
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count++;
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}
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}
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System.out.println("满足条件的个数:"+count);
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}
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}
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