Java Training in Chennai – Arrays – Learning – Part – I

Here in this blog we are going to discuss about Java Training in Chennai – Arrays – Learning – Part – I . They are illustrated very well below .

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class Test {

   public static void main(String args[]) {

     int arr[2];

     System.out.println(arr[0]);

     System.out.println(arr[1]);

   }

}

 

class Test {

   public static void main(String args[]) {

     int arr[] = new int[2];

     System.out.println(arr[0]);

     System.out.println(arr[1]);

   }

}

 

public class Main {

    public static void main(String args[]) {

        int arr[][] = new int[4][];

        arr[0] = new int[1];

        arr[1] = new int[2];

        arr[2] = new int[3];

        arr[3] = new int[4];

        int i, j, k = 0;

        for (i = 0; i < 4; i++) {

            for (j = 0; j < i + 1; j++) {

                arr[i][j] = k;

                k++;

            }

        }

        for (i = 0; i < 4; i++) {

            for (j = 0; j < i + 1; j++) {

                System.out.print(” ” + arr[i][j]);

                k++;

            }

            System.out.println();

        }

    }

}

 

class Test

{

    public static void main (String[] args)

    {

        int arr1[] = {1, 2, 3};

        int arr2[] = {1, 2, 3};

        if (arr1 == arr2)

            System.out.println(“Same”);

        else

            System.out.println(“Not same”);

    }

}

 

class Test

{

    public static void main (String[] args)

    {

        int arr1[] = {1, 2, 3};

        int arr2[] = {1, 2, 3};

        if (Arrays.equals(arr1, arr2))

            System.out.println(“Same”);

        else

            System.out.println(“Not same”);

    }

}

 

class Test

{

    public static void main (String[] args)

    {

        int arr1[] = {1, 2, 3};

        int arr2[] = {1, 2, 3};

        if (arr1.equals(arr2))

            System.out.println(“Same”);

        else

            System.out.println(“Not same”);

    }

}

 

public static void main(String[] args) {

                        int[] a = new int[0];

                        System.out.print(a.length);

            }

 

public class Tester {

            static void test(int[] a) {

                        int[] b = new int[2];

                        a = b;

                        System.out.print(b.length);

                        System.out.print(a.length);

            }

            public static void main(String[] args) {

                        int[] a = new int[5];

                        test(a);

                        System.out.print(a.length);

            }

            }

 

public static void main(String[] args) {

                        String entries[] = {“entry1″,”entry2”};

                        int count=0;

                        while (entries [count++]!=null){

                                    System.out.println(count);

                        }

                   System.out.println(count);

            }

 

public class Tester {

            final static int x[] = new int[5];

            public static void main(String[] args) {

                        final int x = new Tester().x[5];

                        if (x <= 10)

                                    System.out.println(“payilagam”);

            }

}

 

public static void main(String[] args)

{

byte b1= 25;

byte b2=45;

byte b3= b1+b2;

}

 

public class MyProg{

    public static void main(String arg[])

    {

            System.out.println(arg[2]);

    }

}

 

int []a = {1,2,3,4,5,6};

    int i = a.length – 1;

    while(i>=0){

     System.out.print(a[i]);

      i–;

   }

 

class Ex1{

      public static void main(String[] args) {

    int a[] = { 1,2,3,4};

  System.out.print(a instanceof Object);

      }

    }

 

class Ex1{

    public static void main(String[] args) {

    int a[] = { 1,2,053,4};

    int b[][] = { {1,2,4} , {2,2,1},{0,43,2}};

    System.out.print(a[3]==b[0][2] );

    System.out.print(” ” + (a[2]==b[2][1]));

     }

 

class Ex1{

    public static void main(String[] args) {

      int a[][] = new int[3][];

       a[1] = new int[]{1,2,3};

       a[2] = new int[]{4,5};

    System.out.print(a[1][1]);

    }

  }

 

int[] array = { 1, 4, 3, 6, 8, 2, 5};

  int what = array[0];

  // scan the array

  for ( int index=0; index < array.length; index++ )

  {

    if ( array[ index ] > what )  

      what = array[ index ]; 

  }

  System.out.println( what );

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REFERENCES :       www.proprofs.com, meritcampus.comwww.geeksforgeeks.org www.f5java.com,

                                     dzone.com, www.examveda.com, beingzero.in/, scjptest.comwww.gocertify.com,

                                    web.cs.iastate.edu, www.sanfoundry.com, https://codingpuzzles.com