PREV     NEXT

Java For loop:

Java – For loop executes a set of statements repeatedly until a specified condition evaluates to false.

Syntax :

Java For loop has 3 parts

• Initialization – Executes once, initializes the loop variable which causes the loop to iterate

• Condition – Specifies the expression which evaluates to true / false. When this condition becomes false, the loop is terminated.

• increment/decrement – Exceutes at every iteration of the loop, causes the loop variable either to increment or decrement.

for (initialization; condition; increment/decrement) { //statements to be repeated }

Example:

Output:

Number:0 Number:1 Number:2 Number:3 Number:4

Note: The 3 parts of the ‘for’ loop can be made optional if necessary. Without them, it becomes an infinite loop

Example:

Enhanced Java – For loop:

Enhanced for loop is the simpler form of the usual ‘for’ loop, usually used to iterate over an array or collection object.

Example:

Output:

Element of array:1 Element of array:2 Element of array:3 Element of array:4 Element of array:5

Here, each value of ‘arr’ is assigned to ‘element’ as it iterates over the loop from the index 0.

PREV     NEXT