KwickClips Java · 41 sec · free
Is 010 equal to 10?
Short answer. No. The leading zero makes it octal, so 010 is 8.
What is the difference between 'A' and "A"?
Single quotes make a char; double quotes make a String.
Six kinds of literal
| Kind | Example |
|---|---|
| Integer | 90, 010, 25L |
| Real | 3.14, 2.5f |
| char, String | 'A', "Hi" |
| boolean, null | true, null |
Remember
| 010 is octal: 8 |
| 'A' char, "A" String |
In Java, zero one zero is not ten. Six kinds. Integers, where a leading zero means octal. Reals. Char and String. Boolean and null. Zero one zero is eight. Single quotes for char, double for String.
This clip is from the full lesson: Java Tokens: Keywords, Identifiers, Literals, Separators and Comments — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Information Technology (802), GSEB Std 12 Computer Studies, Programming All levels Java, Programming All levels Java
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