1.Math.abs()Math.abs() 方法用于返回一个数的绝对值。就像在篮球比赛中,不论球员的位置如何,最终分数都是正的。这个方法确保你得到的值总是非负的。例子:int number = -15;int absValue = Math.abs(number); // 结果是 15 2.Math.sqrt()Math.sqrt() 方法用于计算一个数的平方根。如果你在跑步中...
System.out.println("Absolute value of " + f2 + " is :" + Math.abs(f2)); double d1 = 3.324; double d2 = -9.324; System.out.println("Absolute value of " + d1 + " is :" + Math.abs(d1)); System.out.println("Absolute value of " + d2 + " is :" + Math.abs(d2));...
Example 2: Java Math abs() with Negative Numbers classMain{publicstaticvoidmain(String[] args){// create variablesinta = -35;longb = -141224423L;doublec = -9.6777777d;floatd = -7.7f;// get the absolute valueSystem.out.println(Math.abs(a));// 35System.out.println(Math.abs(b));//...
abs(long a) Returns the absolute value of a long value. static double acos(double a) Returns the arc cosine of a value; the returned angle is in the range 0.0 through pi. static int addExact(int x, int y) Returns the sum of its arguments, throwing an exception if the result ov...
为何会出现上面问题那?其实Math.abs(int a)函数注释已经说明了: Note that if the argument is equal to the value of Integer.MIN_VALUE, the most negative representable int value, the result is that same value, which is negative. 也就是如果参数是整数最小负数,则Math.abs(int a)方法会返回最小负...
也就是说,Math.abs(Integer.MIN_VALUE)的值还是其本身。通过查阅Java的API文档,我们看到对abs(int a)运算,“如果参数等于Integer.MIN_VALUE的值(即能够表示的最小负int值),那么结果与该值相同且为负。”所以会有这样的结果。 这样也就出现了一个问题,即上面的取余操作不是很合适的。下面的代码展示了一个真正...
Math.abs()方法会返回一个数的绝对值,即该数的正值。如果输入的数为正数或零,则返回该数本身;如果输入的数为负数,则返回其绝对值。 区别在于,如果直接使用绝对值运算符"|"来获取一个数的绝对值,需要注意整数溢出的问题。例如: int num = Integer.MIN_VALUE; int absNum = Math.abs(num); int absNum2 ...
package com.cyjt97.M; public class mathM { public static void main(String[] args) { // abs取绝对值 System.out.println(Math.abs(-123));//123 System.out.pri
为何会出现上面问题那?其实Math.abs(int a)函数注释已经说明了: Note that if the argument is equal to the value of Integer.MIN_VALUE, the most negative representable int value, the result is that same value, which is negative. 也就是如果参数是整数最小负数,则Math.abs(int a)方法会返回最小负...
其实Math.abs(int a)函数注释已经说明了:Note that if the argument is equal to the value of Integer.MIN_VALUE, the most negative representable int value, the result is that same value, which is negative. 也就是如果参数是整数最小负数,则Math.abs(int a)方法会返回最小负数本身,那么该方法为啥...