publicstaticvoidmain (stringsddydargs ) {
listtestbigdecimallist=newarraylisttestbigdecimal (; list.add (新测试bigdecimal (1l,1.2 ); list.add (新测试医学) 2L,1.3 ); list.add (新测试医学) 3L,1.4 ); list.add (新测试医学) 4L,1.5 ); bigdecimal y=new bigdecimal (0.000; for(testbigdecimalt:list ) {双精度x=2.22; y=y.add(newbigdecimal ) t.getmoney ) * x ); } system.out.println (y.set scale (3,BigDecimal.ROUND_DOWN ); }