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Java Exercises: Check if the number of 10 is greater than number to 20s in a given array of integers

Java Basic: Exercise-101 with Solution

Write a Java program to check if the number of 10 is greater than number to 20s in a given array of integers.

Pictorial Presentation:

Java Basic Exercises: Check if the number of 10 is greater than number to 20s in a given array of integers

Sample Solution:

Java Code:

import java.util.*; 
import java.io.*; 
 public class Exercise101 {
 public static void main(String[] args)
 {
	int[] array_nums = {10, 11, 10, 30, 45, 20, 33, 53};
    int result = 0; 
	System.out.println("Original Array: "+Arrays.toString(array_nums)); 
    
	int ctr1 = 0;
    int ctr2 = 0;
      
    for(int i = 0; i < array_nums.length; i++) {
        if(array_nums[i] == 10)
            ctr1++;
                        
        if(array_nums[i] == 20)
            ctr2++;
    }                                      
    System.out.printf(String.valueOf(ctr1 > ctr2));
	System.out.printf("\n");
  }
}

Sample Output:

Original Array: [10, 11, 10, 30, 45, 20, 33, 53]                       
true

Flowchart:

Flowchart: Java exercises: Check if the number of 10 is greater than number to 20s in a given array of integers

Java Code Editor:

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Previous: Write a Java program to count the two elements of two given arrays of integers with same length, differ by 1 or less.
Next: Write a Java program to check if a specified array of integers contains 10 or 30.

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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