Java Reference
In-Depth Information
Multiple choice switch conditionals are often used by programmers for
displaying messages 2 :
Program 2.3 Demonstration of the switch case statement
int dd=3; // 0 for Monday, 6 for Sunday
switch (dd)
case 0:
System . out . println ( "Monday" ); break ;
case 1:
System . out . println ( "Tuesday" ); break ;
case 2:
System . out . println ( "Wednesday" ); break ;
case 3:
System . out . println ( "Thursday" ); break ;
case 4:
System . out . println ( "Friday" ); break ;
case 5:
System . out . println ( "Saturday" ); break ;
case 6:
System . out . println ( "Sunday" ); break ;
default :
System . out . println ( "Out of scope!" );
}
2.3 Blocks and scopes of variables
2.3.1 Blocks of instructions
A block of instructions is a set of instructions that is executed sequentially.
Blocks of instructions are delimited by braces, as shown below:
{
// This is a block
// (There are no control structures inside it)
Instruction1;
Instruction2;
...
}
A block is semantically interpreted as an atomic instruction at a macroscopic
level when parsing.
2 Or used for translating one type to another when used in functions
 
 
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