FLOW CONTROL AND ARRAY (Experience In JAVA)

 Flow Control 

There are four basic flow controls in java,

• Decision-making statement -(if, if-else, if else if, nested if)
• Iteration statement - (for, while, do-while)
• Jumping statement -(break, continues, return, etc)
• Branching statement -(switch)

Loop

Loop is an iteration statement which use to repeat a process with a condition satisfies.

There are 4 basic components at a loop

• Initialization -(Starting point)
• Condition -(Ending point)
• Operation -(Next Phase)
• Body -(repeat statement)

Syntax for loop

          for (Initialization; Condition; Operation)

                   {

 …......body..........

                   }

Array

An array is a derived data type that is used to make a group of data of a similar type under a unique name. Each and every element of an array have a position value known as index/indexing. The number surrounded within [] is known as sub-script, it is used to 

• To specify dimensions
• To access the required element

Type of Array

• One dimension array
• Multi dimension array

Syntax of array

Data type name[]=new Data type[size];

Example:-

Int arr[] = new int[size];

String name[] = new String[size];

In java and C/C++  array have a difference, in C/C++ array no option to declare in variable in “[]”

C/C++ :- int arr[ variable ]      “\not possible/”

For example

                             int size =10;

                             int arry[size];                   not possible

In java array have fully dynamic array have more option to declare any type;

For example:-

                   int size =20;

                   int arr[] = new arr[size]                       is possible

One Dimension Array 

Two Dimension Array