Basic Java Language: Difference between revisions
wikademia>Mirwin |
wikademia>Mirwin m →Identifiers: Insert link to Flashcards for Java Keywords |
||
| Line 59: | Line 59: | ||
There are several rules for the naming of your variables. Identifiers can be named using all the letters from A through Z (capital or lowercase, you choose), numbers 0-9 and underscore _ and the dollar sign $. The first character of the identifier cannot be a number, but it can be a letter, _ or $. | There are several rules for the naming of your variables. Identifiers can be named using all the letters from A through Z (capital or lowercase, you choose), numbers 0-9 and underscore _ and the dollar sign $. The first character of the identifier cannot be a number, but it can be a letter, _ or $. | ||
You can't create two variables with the same identifier, all identifiers must be unique. You also can't use an identifier that is a Java keyword. Here is a list of all the [http://en.wikipedia.org/wiki/Java_keywords Java Keywords]. [Flashcards for Java keywords] provides some assistance in memorizing the concepts behind specific keywords. | You can't create two variables with the same identifier, all identifiers must be unique. You also can't use an identifier that is a Java keyword. Here is a list of all the [http://en.wikipedia.org/wiki/Java_keywords Java Keywords]. [[Flashcards for Java keywords]] provides some assistance in memorizing the concepts behind specific keywords. | ||
==Statements== | ==Statements== | ||