各位大大!小弟我最近在学习NumberFormat,现在碰到一个很奇怪的问题,代码如下:
NumberFormat nf = NumberFormat.getInstance();
NumberFormat cnf = NumberFormat.getCurrencyInstance();
NumberFormat inf = NumberFormat.getIntegerInstance();
NumberFormat nnf = NumberFormat.getNumberInstance();
NumberFormat pnf = NumberFormat.getPercentInstance(); nnf.setMinimumIntegerDigits(4);
nnf.setMaximumFractionDigits(3);
System.out.println(nf.format(9999));
System.out.println(cnf.format(9999));
System.out.println(inf.format(9999.5145));//修改前
System.out.println(nnf.format(333.5145));//修改前
System.out.println(pnf.format(9999));
执行结果:
9,999
¥9,999
10,000
0,333.514
999,900% NumberFormat nf = NumberFormat.getInstance();
NumberFormat cnf = NumberFormat.getCurrencyInstance();
NumberFormat inf = NumberFormat.getIntegerInstance();
NumberFormat nnf = NumberFormat.getNumberInstance();
NumberFormat pnf = NumberFormat.getPercentInstance();
nnf.setMinimumIntegerDigits(4);
nnf.setMaximumFractionDigits(3);
System.out.println(nf.format(9999));
System.out.println(cnf.format(9999));
System.out.println(inf.format(9999.51455));// 修改后
System.out.println(nnf.format(333.51455));// 修改后
System.out.println(pnf.format(9999));
执行结果:
9,999
¥9,999
10,000
0,333.515
999,900%
小弟我想问一下,为什么增加了一位数字就会出现不同的结果!谢谢!
NumberFormat nf = NumberFormat.getInstance();
NumberFormat cnf = NumberFormat.getCurrencyInstance();
NumberFormat inf = NumberFormat.getIntegerInstance();
NumberFormat nnf = NumberFormat.getNumberInstance();
NumberFormat pnf = NumberFormat.getPercentInstance(); nnf.setMinimumIntegerDigits(4);
nnf.setMaximumFractionDigits(3);
System.out.println(nf.format(9999));
System.out.println(cnf.format(9999));
System.out.println(inf.format(9999.5145));//修改前
System.out.println(nnf.format(333.5145));//修改前
System.out.println(pnf.format(9999));
执行结果:
9,999
¥9,999
10,000
0,333.514
999,900% NumberFormat nf = NumberFormat.getInstance();
NumberFormat cnf = NumberFormat.getCurrencyInstance();
NumberFormat inf = NumberFormat.getIntegerInstance();
NumberFormat nnf = NumberFormat.getNumberInstance();
NumberFormat pnf = NumberFormat.getPercentInstance();
nnf.setMinimumIntegerDigits(4);
nnf.setMaximumFractionDigits(3);
System.out.println(nf.format(9999));
System.out.println(cnf.format(9999));
System.out.println(inf.format(9999.51455));// 修改后
System.out.println(nnf.format(333.51455));// 修改后
System.out.println(pnf.format(9999));
执行结果:
9,999
¥9,999
10,000
0,333.515
999,900%
小弟我想问一下,为什么增加了一位数字就会出现不同的结果!谢谢!
nnf.setMaximumFractionDigits(3);这里,你设置了小数部分的最大位数为3,显示的时候四舍五入了啊