BigDecimal 2.0 is coming equal to BigDecimal 2.00 [duplicate]

At compile time the doubles 2.0 and 2.00 are the same. You need a String. Like,

System.out.println(new BigDecimal(2.0).equals(new BigDecimal("2.00")));

Outputs

false

Your current code is the equivalent of

System.out.println(2 == 2.00);

Which is obviously true.

To expand on that last example, consider

BigDecimal a = new BigDecimal(2.0);
BigDecimal b = a.setScale(2);
System.out.printf("%s equals %s is %s%n", a, b, a.equals(b));

which should explain why your current code behaves as it does; because

2 equals 2.00 is false

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