java string BigDecimal

/*Method of constructing BigDecimal from numeric string  *Method of setting the number of decimal places of BigDecimal  */ import  java.math.BigDecimal;    //Number string  String StrBd= "1048576.1024" ;    //Construct the value of string content BigDecimal type variable bd  BigDecimal bd= new  BigDecimal(StrBd);    //Set the number of decimal places, the first variable is the number of decimal places, and the second variable is the rounding method (rounding)  bd=bd.setScale( 2 , BigDecimal. ROUND_HALF_UP);    //Convert to string output  String OutString=bd.toString();     
 
   

  

  

  

  

           String amount =“￥990.00”；

                       amount = amount.substring(0, 1);
			
			BigDecimal bd=new BigDecimal(amount);  
			
			bd=bd.setScale(2, BigDecimal.ROUND_HALF_UP);
			
			memberExtend.setUsableAmount(bd);

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