java.math.BigDecimal.hashCode() 返回此BigDecimal的哈希代码。两个BigDecimal对象是数值上相等,但不同的规模(比如2.0和2.00),一般不会有相同的哈希码。
声明
以下是java.math.BigDecimal.hashCode()方法声明
public int hashCode()
重写
-
hashCode in class Object
参数
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NA
返回值
此方法返回BigDecimal对象的哈希码值
异常
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NA
例子
下面的例子显示math.BigDecimal.hashCode()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("125"); bg2 = new BigDecimal("125.50"); bg3 = new BigDecimal("125.80"); // assign the HashCode value of bg1, bg2, bg3 to i1, i2, i3 // respectively i1 = bg1.hashCode(); i2 = bg2.hashCode(); i3 = bg3.hashCode(); String str1 = "HashCode of " + bg1 + " is " + i1; String str2 = "HashCode of " + bg2 + " is " + i2; String str3 = "HashCode of " + bg3 + " is " + i3; // print i1, i2, i3 values System.out.println( str1 ); System.out.println( str2 ); System.out.println( str3 ); } }
让我们编译和运行上面的程序,这将产生以下结果:
HashCode of 125 is 3875 HashCode of 125.50 is 389052 HashCode of 125.80 is 389982