Java BASICS (1)

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Java Naming rules:

Type conversion:

The automatic conversion type is also called implicit conversion as follows:

  number = 15  test=number;

Forced conversion is also called explicit conversion as follows:

  number = 15  test=()number;

Note the following before using the arithmetic operators:

  i =10 System.out.println(i++ System.out.println(i-- System.out.println(++ System.out.println(--                        

Comparison operator:

The returned result is of the boolean type. If the value is not true, false is returned.

Operator example result

= Equal to 1 = 1 true

! = Or <> not equal to 1! = 1 or 1 <> 1 false

<Less than 1 <2 true

> Greater than 1> 1 false

<= Less than or equal to 1 <= 1 true

> = Greater than or equal to 1> = 2 false

Score = 59 System. out. println (score> = 60? "Pass": "fail"