Java keywords and symbols use

1. Use semicolons, keywords, blanks, curly braces, etc. 1.1 semicolon:

in Java , Some characters are used as delimiters , and the most commonly used separators are semicolons (;), which are used to separate statements

1.2 Keywords:

Java keywords are pre-defined in a computer language, with special identifiers, sometimes called reserved words, and variables of special significance. java 's keywords have special meanings for java compilers, they are used to represent a data type, or to represent the structure of a program, and the keyword cannot be used as a variable name, method name, class name, package name, or parameter.

Class enum,interface,class,extends, Implements

Object New,instanceof,this,Super

Package,import

Data type Byte short int , Span style= "Font-family:calibri" >long , float , double , char , boolean

Branch if, else,switch,case,break, Continue

Loop do,while, for

method void,return

Exception Throw throws try , Span style= "Font-family:calibri" >catch , finally

Modifier abstract, final private , protected public Static synchronized , STRICTFP , native , assert , transient , volatile

Reserved word const,goto

1.3 blank:

1. when you encounter an operator in your code, such as = , leave a space at both ends to enhance the readability of your code.

2. Between lines of code, you can add blank lines based on logical relationships to enhance readability.

1.4 Curly braces {}:

1. Used to include the value of an automatically initialized array.

2. used to define program blocks , classes , methods, and local scopes.

Java keywords and symbols use