环境：Eclipse 3.6 jdk：1.6
程序:
package com.test.doubletest;
import java.math.BigDecimal;
public class DoubleDataType {
/**
* @param args
*/
public static void main(String[] args) {
Double d_0 = new Double(0.00929505412378221);
Double d_1 = new Double(0.00909505412378221);
Double d_2 = new Double(0.00919505412378221);
Double d_3 = new Double(0.00939505412378221);
Double d_4 = new Double(0.00949505412378221);
Double d_5 = new Double(0.00959505412378221);
Double d_6 = new Double(0.00969505412378221);
Double d_7 = new Double(0.00979505412378221);
Double d_8 = new Double(0.00989505412378221);
Double d_9 = new Double(0.00999505412378221);
BigDecimal re_0 = new BigDecimal(d_0.doubleValue());
BigDecimal re_1 = new BigDecimal(d_1.doubleValue());
BigDecimal re_2 = new BigDecimal(d_2.doubleValue());
BigDecimal re_3 = new BigDecimal(d_3.doubleValue());
BigDecimal re_4 = new BigDecimal(d_4.doubleValue());
BigDecimal re_5 = new BigDecimal(d_5.doubleValue());
BigDecimal re_6 = new BigDecimal(d_6.doubleValue());
BigDecimal re_7 = new BigDecimal(d_7.doubleValue());
BigDecimal re_8 = new BigDecimal(d_8.doubleValue());
BigDecimal re_9 = new BigDecimal(d_9.doubleValue());
System.out.println(re_0.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_1.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_2.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_3.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_4.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_5.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_6.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_7.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_8.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
System.out.println(re_9.setScale(4, BigDecimal.ROUND_HALF_UP).doubleValue()*100);
}
}
输出结果：
0.9299999999999999
0.91
0.9199999999999999
0.9400000000000001
0.95
0.96
0.97
0.98
0.9900000000000001
1.0
出现此问题是什么情况？
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