Java Interview Bible Note

1. A. java file can have more than one class (not an inner class), but only one public class, with the class name and file name. (This is generally not advocated, one type of document)

2.java reserved word: goto, construction.

3.&& has a short-circuit effect, and no;

& can represent bitwise-and operation-based operators.

4.java can jump out of the current loop with a label:

Ok:

For (...) {

if (i==5) {

Break OK;

}

}

can also be used without marking, direct break.

Java Interview Bible Note