Question

I am using jdk 1.6. This is my code.

float f = 10.0f;

double d = 10.0; 

System.out.println("Equal Status : " + (f == d)); 

then the system shows the answer as true. But if I modified the value as

float f = 10.1f; 

double d = 10.1; 

System.out.println("Equal Status : " + (f == d));

then the system shows the answer as false. I know the system use Bit matching for == checking. But what is the reason behind. Can you explain about it? Thanks in advance.

Answer 1

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What Every Programmer Needs to know about Floating Point