Question

Write a Java Program to check Armstrong number.

Answer 1

Let's try to understand why 153 is an Armstrong number.

153 = (1*1*1)+(5*5*5)+(3*3*3)

where:

(1*1*1)=1

(5*5*5)=125

(3*3*3)=27

So:

1+125+27=153

Let's try to understand why 371 is an Armstrong number.

371 = (3*3*3)+(7*7*7)+(1*1*1)

where:

(3*3*3)=27

(7*7*7)=343

(1*1*1)=1

So:

27+343+1=371

Let's see the java program to check Armstrong Number.

class ArmstrongExample{

public static void main(String[] args) {

int c=0,a,temp;

int n=153;//It is the number to check armstrong

temp=n;

while(n>0)

{

a=n%10;

n=n/10;

c=c+(a*a*a);

}

if(temp==c)

System.out.println("armstrong number");

else

System.out.println("Not armstrong number");

}

}

Output:

armstrong number

Answer 2

ola!!

class ArmstrongExample{

public static void main(String[] args) {

int c= 0,a,temp;

int n= 153;//It is the number to check armstrong

temp=n;

while(n> 0 )

{

a=n% 10;

n=n/ 10;

c=c+(a*a*a);

}

if (temp==c)

System.out.println( "armstrong number" );

else

System.out.println( "Not armstrong number" );

}

}

Output:

armstrong number

tysm❤