java Grammar Notes

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When writing a Java program, you should note the following:
case sensitive: Java is case-sensitive, which means that the identifier Hello and hello are different. Class Name: For all classes, the class name first letter should be capitalized. If the class name composed of several words, the first letter of each word should be capitalized, such as MyFirstJavaClass. Method name: All method name should begin with a lowercase letter. If the method name contains several words, each word is capitalized behind such myFirstJavaClass. Source File name: source file name must be the same as the class name. When saving files, you should use the class name as the file name to save (Remember that Java is case-sensitive), the file name extension is .java. (If the file name and class name are not the same will result in a compilation error). Method main entrance: all the Java programs public static void main (String [] args) method to begin.

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