Java.math.BigDecimal.signum() 方法

描述

java.math.BigDecimal.signum() 返回此 BigDecimal 的符號函式。

宣告

以下是 java.math.BigDecimal.signum() 方法的宣告。

public int signum()

引數

無

返回值

此方法返回 -1、0 或 1，具體取決於此 BigDecimal 的值是否為負、零或正。

異常

無

無

示例

package com.tutorialspoint;

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 );
   }
}

互動式線上示例

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