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Java Array Exercises: Print the specified grid

Java Array: Exercise-3 with Solution

Write a Java program to print the following grid.

Sample Solution:

Java Code:

public class Main {
public static void main(String[] args) {   
 int [][]a = new int[10][10];    
 for(int i = 0; i < 10; i++)
   {
      for(int j = 0; j < 10; j++)
      {
         System.out.printf("%2d ", a[i][j]);
      }
      System.out.println();
   }
}
}

Sample Output:

0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 
 0  0  0  0  0  0  0  0  0  0 

Flowchart:

Flowchart: Java exercises: Print the specified grid

Java Code Editor:

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Java: Tips of the Day

countOccurrences

Counts the occurrences of a value in an array.

Use Arrays.stream().filter().count() to count total number of values that equals the specified value.

public static long countOccurrences(int[] numbers, int value) {
    return Arrays.stream(numbers)
            .filter(number -> number == value)
            .count();
}

Ref: https://bit.ly/3kCAgLb