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Java Exercises: Check if a specified array of integers contains 10 or 30

Java Basic: Exercise-102 with Solution

Write a Java program to check if a specified array of integers contains 10 or 30.

Pictorial Presentation:

Java Basic Exercises: Check if a specified array of integers contains 10s or 30s

Sample Solution:

Java Code:

import java.util.*; 
import java.io.*; 
 public class Exercise102 {
 public static void main(String[] args)
 {
	int[] array_nums = {11, 11, 13, 31, 45, 20, 33, 53};
    int result = 1; 
	System.out.println("Original Array: "+Arrays.toString(array_nums)); 
	
	for(int i = 0; i < array_nums.length; i++)
     {
      	if(array_nums[i] == 10 || array_nums[i] == 30)
		{	
  		
		   result =0;
		}
      }
	 if (result==1)
 	   System.out.printf( String.valueOf(false));	         
     else
	   System.out.printf(String.valueOf(true));
  }
}

Sample Output:

Original Array: [11, 11, 13, 31, 45, 20, 33, 53]                       
false 

Flowchart:

Flowchart: Java exercises: Check if a specified array of integers contains 10 or 30

Java Code Editor:

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Previous: Write a Java program to check if the number of 10 is greater than number to 20 in a given array of integers.
Next: Write a Java program to create a new array from a given array of integers, new array will contain the elements from the given array after the last element value 10.

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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