Here is a small code snippet given. Try to Guess the output
At first glance, we expect “YOLO” to be printed.
When we use double quotes, the text is treated as a string and “YO” is printed, but when we use single quotes, the characters ‘L’ and ‘O’ are converted to int. This is called widening primitive conversion. After conversion to integer, the numbers are added ( ‘L’ is 76 and ‘O’ is 79) and 155 is printed.
Now try to guess the output of following:
Explanation: This will now print “YOLO” instead of “YO7679”. It is because the widening primitive conversion happens only when a operator like ‘+’ is present which expects at least integer on both side.
Widening primitive conversion is applied to convert either or both operands as specified by the following rules. The result of adding Java chars, shorts or bytes is an int:
- If either operand is of type double, the other is converted to double.
- Otherwise, if either operand is of type float, the other is converted to float.
- Otherwise, if either operand is of type long, the other is converted to long.
- Otherwise, both operands are converted to type int
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