Problem of Exponent 2.0E7

Question

Hello
i have a simple problem
float a=10000000;
     float b=10000000;
     float c=a+b;
     System.out.println(c);
result is 2.0E7
what i want to display is 20000000.0 not 2.0E7
//i have just given a sample of problem actually i am doing a lot
//of maths in my accounting project and geeting these type of
//results Is there any good solution

Answer 1

This works too.
java.math.BigDecimal bigA = new java.math.BigDecimal("10000000.0");
java.math.BigDecimal bigB = new java.math.BigDecimal("10000000.0");
bigA = bigA.add(bigB);
System.out.println(bigA.toString());(The BigDecimal class also has methods movePointLeft(int) and movePointRight(int). These are often useful for formatting a number.)