mirror of https://github.com/01-edu/public.git
amin
3 months ago
committed by
zanninso
2 changed files with 69 additions and 0 deletions
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public class ExerciseRunner { |
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public static void main(String[] args) { |
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ArmstrongNumber armstrongNumber = new ArmstrongNumber(); |
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// Test case 1
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int number1 = 153; |
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System.out.println("Is " + number1 + " an Armstrong number? " + armstrongNumber.isArmstrong(number1)); // Expected output: true
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// Test case 2
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int number2 = 123; |
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System.out.println("Is " + number2 + " an Armstrong number? " + armstrongNumber.isArmstrong(number2)); // Expected output: false
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// Test case 3
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int number3 = 9474; |
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System.out.println("Is " + number3 + " an Armstrong number? " + armstrongNumber.isArmstrong(number3)); // Expected output: true
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} |
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} |
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## Armstrong Number |
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### Instructions |
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Write a program to check if a given number is an Armstrong number. An Armstrong number of n digits is an integer such that the sum of its digits raised to the power n is equal to the number itself. |
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Example: 153 is an Armstrong number bacause `1^3 + 5^3 + 3^3 = 153` |
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### Expected Class |
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```java |
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public class ArmstrongNumber { |
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public boolean isArmstrong(int number) { |
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// Implementation to check if the given number is an Armstrong number |
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} |
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} |
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``` |
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### Usage |
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Here is a possible `ExerciseRunner.java` to test your class: |
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```java |
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public class ExerciseRunner { |
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public static void main(String[] args) { |
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ArmstrongNumber armstrongNumber = new ArmstrongNumber(); |
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// Test case 1 |
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int number1 = 153; |
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System.out.println("Is " + number1 + " an Armstrong number? " + armstrongNumber.isArmstrong(number1)); // Expected output: true |
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// Test case 2 |
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int number2 = 123; |
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System.out.println("Is " + number2 + " an Armstrong number? " + armstrongNumber.isArmstrong(number2)); // Expected output: false |
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// Test case 3 |
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int number3 = 9474; |
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System.out.println("Is " + number3 + " an Armstrong number? " + armstrongNumber.isArmstrong(number3)); // Expected output: true |
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} |
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} |
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``` |
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### Expected Output |
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```shell |
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$ javac *.java -d build |
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$ java -cp build ExerciseRunner |
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Is 153 an Armstrong number? true |
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Is 123 an Armstrong number? false |
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Is 9474 an Armstrong number? true |
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$ |
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``` |
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