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Question

int sum1 = 1000 / 5;
int sum2 = sum1 / 2;
int sum3 = sum1 / sum2;
In the example above, the result of the division equation will be a whole number, as int is used as the data type. You can use double to retrieve a value with a decimal point.

☝️Please explain the above text to me

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Answer 1

For first line
sum1 = 1000/5;
Here sum1 store the value 200.
Now second line.
sum2 = sum1/2;
Now as sum1 contain 200 then our equation is
sum2= 200/2;
Here sum2 store the value 100.
Now third line
sum3 = 200/100;
Now the sum3 store the value 2

Answer 2

sum1 = 1000/5
sum2 = sum1 / 2
sum3 = sum1 / sum2
puts sum3
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output : 2
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mean, you do not need to int,string...
You need to just variable name.That sounds unsafe, isn't it?