Array Input Output of Java

/* Assigning value to array elements through keyboard */
package webpractrice;

import java.io.*;
public class WebPractrice
{ 
    public static void main(String[] args) throws IOException
    {
        int Roll[] = new int [5];
        String S[] = new String[5];
        for (int i = 0; i < 5; i++)
        {
            System.out.print("\nEnter Your ID [" +i +"] : ");
            BufferedReader BR = new BufferedReader(new InputStreamReader(System.in));
            S[i] = BR.readLine();
            Roll[i] = Integer.parseInt(S[i]);
        }
        for(int i = 0; i < 5; i++)
        {
            System.out.println("\nID[" +i+ "] = "+Roll[i]);
        }
    }
   
}

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Explain of Array types

Dimension Explain of Array :-

Array can be divided into the following categories based on the dimension.

1.     One dimensional array.

2.     Two dimensional array.

3.     Multi-dimensional array.

One Dimensional Array :
  Array is a dimensional array balloon made with a single user.

Its structure :

data_type array_name[ size ];

Example :

int i[ 10 ];

float a[ 10 ];

char ch[ 20 ];

double b[ 5 ];

Two Dimensional Array :

  Array is a dimensional array balloon made with a two user.

          Its structure :

                    data_type array_name[ row_size ][ col_size ];

          Example :

                    int student[ 3 ][ 4 ]; 

60 [ 0 ][ 0 ]

80 [ 0 ][ 1 ]

75 [ 0 ][ 2 ]

62 [ 0 ][ 3 ]

40 [ 1 ][ 0 ]

90 [ 1 ][ 1 ]

82 [ 1 ][ 2 ]

34 [ 1 ][ 3 ]

25 [ 2 ][ 0 ]

10 [ 2 ][ 1 ]

35 [ 2 ][ 2 ]

42 [ 2 ][ 3 ]

Multi-dimensional Array :

  Array is a dimensional array balloon made with a three or more than user.

          Its structure :

                    Data_type array_name[ s1 ][ s2 ]….[ s_n ];

          Example :

                    int s[ 2 ][ 3 ][ 4 ];

                    float table[ 5 ][ 6 ][ 4 ][ 5 ];

Initialization :

One Dimensional Array :

Static data_type array_name[ size ] = { list of values };

Example : static int number[ 3 ] = { 5, 0, 7 };

Two Dimensional Array :

There are same type of one dimensional array;

Example : static int table[ 2 ][ 3 ] = { 1, 2, 3, 4, 5, 6 };

Example of Matrix: static int table[ 2 ][ 3 ] = {{ 1, 2, 3}, {4, 5, 6} };

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Array output in Java code

/* Example of Array Output */
package ArrayOutput;
public class ArrayOutput
{
    public static void main(String[] args)
    {
        int marks[] = {23, 54, 34, 10, 15, 30, 25};
        for(int i = 0; i <= 6; i++)
        {
            prln("Mark["+i+"] = "+marks[i]);
        }
    }
    static void prln(Object anyObject)
    {
        System.out.println(anyObject);
    }
    static void pr(Object anyObject)
    {
        System.out.print(anyObject);
    }
   
}

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