This Java Tutorial is complete coverage of Java Basics Tutorial , Java String Tutorial, Java Array Tutorial , Java Swing Tutorial , and Java Applet. Tutorial . . .
Java Array – A collection of such related data shall be represented as an array in Java. All the values in the array are collectively represented by a single variable name. Such a variable name is known as array name.
Array So far we have used only the primitive data types, namely char, int, float and double. Although these types are very useful, they are constrained by the fact that a variable of these types can store only one value at any given time. Therefore, they can be used only to handle limited amounts of data. In many applications, however, we … Read more…
Array Declaration and Initialization Methods Arrays can be assigned initial values in the declaration statement itself. An ‘array initializer’ is a list of comma-separated expressions surrounded by curly braces. The commas separate the values of the array elements. The array will automatically be created large enough to hold the number of elements you specify in … Read more…
Array Length In Java, all arrays store the allocated size in a variable named length. We can obtain the length of the array mark using mark.length. This information will be useful in the manipulation of arrays when their sizes are not known. Program Program Source public class Javaapp { public static void main(String[] args) { int[] … Read more…
Get Array Value Using For Loop Processing an entire array in a single operation is not possible. Each element of the array must be dealt separately. For this purpose loops are used. Though various loops are available in Java the most popular loop for array manipulation is the For-loop. We shall use a for loop for … Read more…
Write Array Values Using Loop We shall use a for loop for providing the values of the elements of an array as input data. For example, in the following program, the array_v1 array size is 5. The values of its elements shall be fed in by using for loop. The values are then retrieved from … Read more…
Get Array Values Using For-Each Loop The for each loop helps us to retrieve the array of elements efficiently rather than using array indexes. This loop is designed to cycle through the entire array, obtaining one element at a time, in sequence, from beginning to end. The loop traverses the elements of the array, not … Read more…