public String getPercent(Integer num,Integer total ){ String percent ;Double p3 = 0.0;if(total == 0){ p3 = 0.0;}else{ p3 = num*1.0/total;} NumberFormat nf = NumberFormat.getPercentInstance();nf.setMinimumFractionDigits(2);//控制保留小数点后几位，2：表示保留2位小数点 ...
java百分比计算？
public String getPercent(Integer num,Integer total ){
String percent ;
Double p3 = 0.0;
if(total == 0){
p3 = 0.0;
}else{
p3 = num*1.0/total;
}
NumberFormat nf = NumberFormat.getPercentInstance();
nf.setMinimumFractionDigits(2);//控制保留小数点后几位，2：表示保留2位小数点
percent = nf.format(p3);
return percent;
}2021-01-08
