How to declare,initialize and access arrays in Java

Arrays can be defined as containers that hold objects that are of similar type. Example public class ArrayExampleCode { publ...

Arrays can be defined as containers that hold objects that are of similar type.


Example

public class ArrayExampleCode {
    
    public static void main(String args[])
    {
    int [] arrayMarks;
    arrayMarks=new int[6];
    arrayMarks[0]=100;
    arrayMarks[1]=700;
    arrayMarks[2]=200;
    arrayMarks[3]=800;
    arrayMarks[4]=600;
    arrayMarks[5]=400;
    
      System.out.println("Element at index 0: "
                           +   arrayMarks[0]);
    System.out.println("Element at index 1: "
                           +   arrayMarks[1]);
    System.out.println("Element at index 2: "
                           +   arrayMarks[2]);
    System.out.println("Element at index 3: "
                           +   arrayMarks[3]);
    System.out.println("Element at index 4: "
                           +   arrayMarks[4]);
    
    System.out.println("Element at index 5: "
                           +   arrayMarks[5]);
    }
    
    
}

Code to Declare Array

   int [] arrayNumbers;

Code to declare array size

   arrayMarks=new int[6];

Code to Initialize Variables

 arrayMarks[0]=100;
    arrayMarks[1]=700;
    arrayMarks[2]=200;
    arrayMarks[3]=800;
    arrayMarks[4]=600;
    arrayMarks[5]=400;

Code to access arrays using Index

  System.out.println("Element at index 0: "
                           +   arrayMarks[0]);
    System.out.println("Element at index 1: "
                           +   arrayMarks[1]);
    System.out.println("Element at index 2: "
                           +   arrayMarks[2]);
    System.out.println("Element at index 3: "
                           +   arrayMarks[3]);
    System.out.println("Element at index 4: "
                           +   arrayMarks[4]);
    
    System.out.println("Element at index 5: "
                           +   arrayMarks[5]);