java.math.BigDecimal.signum()%uA0返回此BigDecimal的正负号函数。
声明
以下是java.math.BigDecimal.signum()方法的声明
public int signum()
参数
-
NA
返回值
此方法返回-1，0，或1，此BigDecimal的值分类为负，零或正值。
异常
-
NA
例子
下面的例子显示math.BigDecimal.signum()方法的用法
package com.yiibai import java.math.* public class BigDecimalDemo { public static void main(String[] args) { // create 3 BigDecimal objects BigDecimal bg1, bg2, bg3 // create 3 int objects int i1, i2, i3 bg1 = new BigDecimal("123") bg2 = new BigDecimal("0") bg3 = new BigDecimal("-12") // assign the signum values of bg1,bg2,bg3 to i1,i2,i3 respectively i1 = bg1.signum() i2 = bg2.signum() i3 = bg3.signum() String str1 = "The Result of Signum function on " + bg1 + " is " + i1 String str2 = "The Result of Signum function on " + bg2 + " is " + i2 String str3 = "The Result of Signum function on " + bg3 + " is " + i3 // print i1,i2,i3 values System.out.println( str1 ) System.out.println( str2 ) System.out.println( str3 ) } }
让我们来编译和运行上面的程序，这将产生以下结果：
The Result of Signum function on 123 is 1 The Result of Signum function on 0 is 0 The Result of Signum function on -12 is -1