hi all! i have doubt in the following two simple if statements.please help if(f*3.0F==1.0F)where f=1.0F/3.0F returns true though the value of f is 0.33333...how come f*3.0F gives 1.0F also if(f*3.0==1.0)returns false?i can understand that f is promoted to double but why it i false same with double if(d*3.0==1.0)where d=1.0/3.0, returns true even d is again 0.33333333333 how d*3.0 is 1.0?
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Originally posted by nachiket deshpande: hi all! i have doubt in the following two simple if statements.please help if(f*3.0F==1.0F)where f=1.0F/3.0F returns true though the value of f is 0.33333...how come f*3.0F gives 1.0F also if(f*3.0==1.0)returns false?i can understand that f is promoted to double but why it i false same with double if(d*3.0==1.0)where d=1.0/3.0, returns true even d is again 0.33333333333 how d*3.0 is 1.0?
I saw this piece of code on the sun's web site .I thought it might be of help to you. class Test { public static void main(String[] args) { short s = 12; // narrow 12 to short float f = s; // widen short to float System.out.println("f=" + f); char c = '\u0123'; long l = c; // widen char to long System.out.println("l=0x" + Long.toString(l,16)); f = 1.23f; double d = f; // widen float to double System.out.println("d=" + d); } } It produces the following output: f=12.0 l=0x123 d=1.2300000190734863
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