Java Basic switch statement

Switch statement is a single conditional multi-branch switch statement, its general format is defined as follows ( where The break statement is optional):

Switch ( expression )

{

Case constant Value :

a number of statements

Break

Case constant Value :

a number of statements

Break

...

Case constant Value N:

a number of statements

Break

Default

several statements

}

The values for expression and constant values in the switch statement must be byte,short,int, Char type or enum type, and not identical.

Import Java.util.Scanner;

public class demo9{

public static void Main (String args[]) {

Scanner reader = new Scanner (system.in);

SYSTEM.OUT.PRINTLN ("please input int");

int input = Reader.nextint (); /* get input int data

switch (input) {

Case 1:/* input is 1

SYSTEM.OUT.PRINTLN ("You input 1");

Break

Case 2:

SYSTEM.OUT.PRINTLN ("You input 2"); /* input is 2

Break

Default:/* input is neither 1nor 2

SYSTEM.OUT.PRINTLN ("You input Other");

Break

}

}

}

Results

Input 2

Input 1

Enter a different number

original link:http://www.maiziedu.com/wiki/java/switch/

A detailed description of the switch statement for Java Basics