Java program to print array elements

In this article, array elements are selected and the elements are printed by using their index values. Arrays are a common way in java to store similar types of items together. Individual values ​​as well as all elements of an array can be easily printed. For printing, for all elements of the array, a "for loop" is usually used, which selects an index from 0 to the length of the array.

The following are several examples of arrays of integer and string types

Int type array example

int [] array1 = {11,22,32,42,-52,62,-72,82,-92,210};
int [][] array2 = {{11,222},{23,42},{-25,26},{-27,28},{-29,120}};
int [][][] array3 = {{{1111, -22222},{5533, 433}},{{44533, -635533},{-777733, 84433}},{{90033, 84433},{-999933, 433}}};

String type array example

String[] strarray = new String[]{"One", "Two", "Three"};
String[][] strarray2 = new String[][]{{"One1", "Two2"}, {"Three3", "Four"}};
String[][][] strarray3={{{"One33", "two33"},{"three33", "433"}},{{"44533", "635533"},{"seven33", "84433"}},{{"seven33", "84433"},{"three33", "433"}}};

algorithm

• Step 1 - Declare the type and define the array.

• Step 2 - Specify elements based on array type. These elements can also be entered by the user.

• Step 3 - Start at index 0 element. print it out.

• Step 4 - Increase the index by 1 and print the next element.

• Step 5 - Go to step 4 and continue doing the same until the last element of the array is printed.

• Step 6 - For 2D arrays, use two separate loops to control row index and column index respectively.

• Step 7 - For N-dimensional arrays, use N loops to control N indexes respectively.

Multiple methods

We provide solution examples using different types.

• By using Int type array

• By using an array of string type

Let’s look at the program and its output one by one.

Method/Example Type 1: Using an array of integer types

For one-dimensional array

for (int n=0; n<array1.length; n++){
   System.out.println(array1[n]);
} ;

For two-dimensional array

for (int n = 0; n < 2; n++) {
   for (int m=0; m< 2; m++) {
      System.out.print(array2[n][m] + " ");
   }
   System.out.println();
}

For three-dimensional array

System.out.println("\nThe 3D Int array is:\n ");
for (int n = 0; n < 3; n++)
for (int m=0; m< 2; m++)
for (int t = 0; t < 2; t++)
   System.out.println("array3[" + n + "][" + m + "][" + t + "] = " + array3[n][m][t]);
};

Example

public class newarr_multidim {
   public static void main(String[] args) {
      int [] array1 = {11,22,32,42,-52,62,-72,82,-92,210};
      int [][] array2 = {{11,222},{23,42},{-25,26},{-27,28},{-29,120}};
      int [][][] array3 = {{{1111, -22222},{5533, 433}},{{44533, -635533},{-777733, 84433}},{{90033, 84433},{-999933, 433}}};

      //printing individual elements by index value
      System.out.println(array1[1]+ "\n\n" +array2[0][1] + "\n\n" + array3[1][0][1]);

      //printing all elements
      System.out.println("\nThe elements in the 1D int array are:\n");
      for (int n=0; n<array1.length; n++){
         System.out.println(array1[n]);
      } ;
      System.out.println("\nThe 2D Int array is:\n ");
      for (int n = 0; n < 2; n++) {
         for (int m=0; m< 2; m++) {
            System.out.print(array2[n][m] + " ");
         }
         System.out.println();
      }
      System.out.println("\nThe 3D Int array is:\n ");
      for (int n = 0; n < 3; n++)
      for (int m=0; m< 2; m++)
      for (int t = 0; t < 2; t++)
      System.out.println("array3[" + n + "][" + m + "][" + t + "] = " + array3[n][m][t]);
   };
}

Output

22
222
-635533
The elements in the 1D int array are:
11
22
32
42
-52
62
-72
82
-92
210
The 2D Int array is:
11 222
23 42
The 3D Int array is:
array3[0][0][0] = 1111
array3[0][0][1] = -22222
array3[0][1][0] = 5533
array3[0][1][1] = 433
array3[1][0][0] = 44533
array3[1][0][1] = -635533
array3[1][1][0] = -777733
array3[1][1][1] = 84433
array3[2][0][0] = 90033
array3[2][0][1] = 84433
array3[2][1][0] = -999933
array3[2][1][1] = 433

Method/Example Type 2: Using String Type Array

For one-dimensional array

for (int n=0; n<strarray.length; n++){
   System.out.println(strarray[n]);
} ;

For two-dimensional array

for (int n = 0; n < 2; n++) {
   for (int m=0; m< 2; m++) {
      System.out.print(strarray2[n][m] + " ");
   }
   System.out.println();
}

For three-dimensional array

System.out.println("\nThe 3D String array is:\n ");
for (int n = 0; n < 3; n++)
for (int m=0; m< 2; m++)
for (int t = 0; t < 2; t++)
System.out.println("strarray3[" + n + "][" + m + "][" + t + "] = " + strarray3[n][m][t]);
};

Example

public class newarr_multidim2 {
   public static void main(String[] args) {
      String[] strarray = new String[]{"One", "Two", "Three"};
      String[][] strarray2 = new String[][]{{"One1", "Two2"}, {"Three3", "Four"}};
      String[][][] strarray3={{{"One33", "two33"},{"three33", "433"}},{{"44533", "635533"},{"seven33", "84433"}},{{"seven33", "84433"},{"three33", "433"}}};

      //printing some elements by index value
      System.out.println(strarray[1]+ "\n\n" +strarray2[0][1] + "\n\n" + strarray3[1][0][1]);

      //printing all elements
      System.out.println("\nThe 1D String array is:\n ");
      for (int n=0; n < strarray.length; n++){
         System.out.println(strarray[n]);
      } ;
      System.out.println("\nThe 2D String array is:\n ");
      for (int n = 0; n < 2; n++) {
         for (int m=0; m< 2; m++) {
            System.out.print(strarray2[n][m] + " ");
         }
         System.out.println();
      }
      System.out.println("\nThe 3D String array is:\n ");
      for (int n = 0; n < 3; n++)
      for (int m=0; m< 2; m++)
      for (int t = 0; t < 2; t++)
      System.out.println("strarray3[" + n + "][" + m + "][" + t + "] = " + strarray3[n][m][t]);
   };
}

Output

Two
Two2
635533
The 1D String array is:
One
Two
Three
The 2D String array is:
One1 Two2
Three3 Four
The 3D String array is:
strarray3[0][0][0] = One33
strarray3[0][0][1] = two33
strarray3[0][1][0] = three33
strarray3[0][1][1] = 433
strarray3[1][0][0] = 44533
strarray3[1][0][1] = 635533
strarray3[1][1][0] = seven33
strarray3[1][1][1] = 84433
strarray3[2][0][0] = seven33
strarray3[2][0][1] = 84433
strarray3[2][1][0] = three33
strarray3[2][1][1] = 433

in conclusion

In the above article, taking Int and String types as examples, Java language is used to print array elements. These examples include 1D array element printing, 2D array element printing, and 3D array element printing. These element-printing methods extend to N-dimensional arrays.

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