Flow Control - Revision history

Suhridk: /* Enhanced for loop */

2011-09-09T17:32:33Z

Enhanced for loop

2011-09-07T10:27:08Z

Switch Statement

2011-09-06T08:39:38Z

Enhanced for loop

2011-09-01T10:55:54Z

Switch Statement

2011-09-01T10:50:02Z

Switch Statement

2011-09-01T10:06:54Z

Switch Statement

2011-09-01T09:48:34Z

Switch Statement

2011-08-27T11:53:53Z

Labeled Break and Continue

2011-08-27T11:45:54Z

Switch Statement

2011-07-20T17:21:45Z

@@ Line 93: / Line 93: @@
 for(declaration : expression)
 * Declaration : Has to be a '''newly declared variable''' of the same '''type''' as of the array we are accessing.
 * Expression: Must be the array or the collection. Can even be multi-dimensional arrays.

@@ Line 37: / Line 37: @@
 ** This means that we can use a constant typed literally like case 1: or case 2:
 ** Or the variable should be a '''primitive final variable''' that is assigned a literal value.
-** An enum value can be used as a case constant,''' but it should be unqualified.'''. The enum should be included in an import statement.
+** An enum value can be used as a case constant,''' but it should be unqualified.'''.
 ** '''ALL Wrapper variables cannot be used as case constants''' even if they are marked as final. Why because compiler will try to unbox the wrapper using Integer.intValue() for e.g. - which wont be a compile time constant.

@@ Line 87: / Line 87: @@
 === Enhanced for loop ===
-* Used to loop through an array or a collection
+* Used to loop through an array or a collection. Basically anything that implements Iterable.
 * Has two components.

@@ Line 38: / Line 38: @@
 ** Or the variable should be a '''primitive final variable''' that is assigned a literal value.
 ** An enum value can be used as a case constant,''' but it should be unqualified.'''. The enum should be included in an import statement.
-** '''ALL Wrapper variables cannot be used as case constants''' even if they are marked as final.
+** '''ALL Wrapper variables cannot be used as case constants''' even if they are marked as final. Why because compiler will try to unbox the wrapper using Integer.intValue() for e.g. - which wont be a compile time constant.
 Example:

@@ Line 38: / Line 38: @@
 ** Or the variable should be a '''primitive final variable''' that is assigned a literal value.
 ** An enum value can be used as a case constant,''' but it should be unqualified.'''. The enum should be included in an import statement.
 Example:

@@ Line 103: / Line 103: @@
 * A label is a valid java identifier that ends with a ":"
 * It must be placed just before the statement being labeled.Any statement can be labeled.
 * Continue must be used only within a loop.
 * A continue will cause a for loop to execute the iteration expression, but a break will not.

@@ Line 32: / Line 32: @@
 * The case constant must evaluate to the same type as the switch expression.
 * The case constant must be a '''COMPILE TIME''' constant.
 ** This means that we can use a constant typed literally like case 1: or case 2: