w3resource

Java Array Exercises: Check if an array of integers without two specified numbers

Java Array: Exercise-30 with Solution

Write a Java program to check if an array of integers without 0 and -1.

Pictorial Presentation:

Java Array Exercises: Check if an array of integers without two specified numbers

Sample Solution:

Java Code:

import java.util.*; 
import java.io.*; 
 public class Exercise30 {
 public static void main(String[] args)
 {
    int[] array_nums = {50, 77, 12, 54, -11};
	System.out.println("Original Array: "+Arrays.toString(array_nums)); 
	System.out.println("Result: "+test(array_nums));
    }	
    public static boolean test(int[] numbers) {
    for (int number : numbers) {
      if (number == 0 || number == -1) {
        return false;
      }
    }
    return true;
  }  
}

Sample Output:

                                                                              
Original Array: [50, 77, 12, 54, -11]                                  
Result: true

Flowchart:

Flowchart: Java exercises: Check if an array of integers two specified numbers

Visualize Java code execution (Python Tutor):


Java Code Editor:

Improve this sample solution and post your code through Disqus

Previous: Write a Java program to compute the average value of an array of integers except the largest and smallest values.
Next: Write a Java program to check if the sum of all the 10's in the array is exactly 30.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Share this Tutorial / Exercise on : Facebook and Twitter

Java: Tips of the Day

getEnumMap

Converts to enum to Map where key is the name and value is Enum itself.

public static <E extends Enum<E>> Map<String, E> getEnumMap(final Class<E> enumClass) {
    return Arrays.stream(enumClass.getEnumConstants())
            .collect(Collectors.toMap(Enum::name, Function.identity()));
}

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