Page 351 - CITS - Computer Software Application -TT

COMPUTER SOFTWARE APPLICATION - CITS

Passing Array to a Method in Java
We can pass the java array to method so that we can reuse the same logic on any array.

Let’s see the simple example to get the minimum number of an array using a method.

//Java Program to demonstrate the way of passing an array
//to method.
class Testarray2{
//creating a method which receives an array as a parameter
static void min(int arr[]){
int min=arr[0];
for(int i=1;i<arr.length;i++)
if(min>arr[i])
min=arr[i];

System.out.println(min);
}

public static void main(String args[]){
int a[]={33,3,4,5};//declaring and initializing an array
min(a);//passing array to method
}}
Output
3

Multidimensional Array in Java
In such case, data is stored in row and column based index (also known as matrix form).

Syntax to Declare Multidimensional Array in Java

dataType[][] arrayRefVar; (or)
dataType [][]arrayRefVar; (or)
dataType arrayRefVar[][]; (or)
dataType []arrayRefVar[];
Example to instantiate Multidimensional Array in Java

int[][] arr=new int[3][3];//3 row and 3 column
Example to initialize Multidimensional Array in Java

arr[0][0]=1;
arr[0][1]=2;
arr[0][2]=3;
arr[1][0]=4;
arr[1][1]=5;
arr[1][2]=6;
arr[2][0]=7;

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CITS : IT&ITES - Computer Software Application - Lesson 85 - 93