Java===java Basic Learning (2)---operator, ternary operator, mathematical function

The main introduction is operators, and mathematical functions as well as ternary operators:

 PackageTestbotoo; Public classTest1 {     Public Static voidMain (string[] args) {intA = 122;SYSTEM.OUT.PRINTLN ("The result of calling operation is:" +operation (a));//call the method defined below    };
     Public Static  intOperation (intv) {        intXe = v + 1; intand = 10;        returnXE; }}

operator, basically similar to Python, except for the use of the && expression and, by | | Represents or:

        /* Relational Operators */          && expression2  // equivalent to expression1 and expression2        in Python expression1 | | Expression2  // equivalent to expression1 or expression2 in Python        

Ternary operators:

        /* ternary operator */          ? expression1:expression2   // evaluates the first expression when the condition condition is true, otherwise evaluates the second expression

For example:
x < y? X:y
The above is the smallest one in X and Y.

Common mathematical functions:

is equivalent to built-in functions, some of the methods that have been implemented belong to the math class.

Math.sin

Math.Cos

Math.exp

Math.log

Math.log10

... ...

When you use it, import it first:

Import Static java.lang.math.*

This eliminates the hassle of adding math. Direct use, Sin,cos,tan and so on.

Java===java Basic Learning (2)---operator, ternary operator, mathematical function