Question

anyone tell question number 7






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Answer 1

I am using the Scanner Class. But you may use InputStreamReader or BufferedReader also...

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import  java.util.*;

public class armstrong  {

public static boolean check ( int n )  {

int s = 0, t = n;

while ( t > 0 )  {

s += ( int ) ( Math.pow( ( t % 10 ), 3 );

t \= 10;

}

if ( s == n )  return true;

else            return false;

}

public static void main ( String args [] )  {

System.out.println ( " Enter the values of M and N. " );

Scanner in = new Scanner ( System.in );

int M = in.nextInt( ), N = in.nextInt( );

for ( ; M < = N ; M++ )

if ( check ( M ) )  System.out.print ( M );  //calling the function and checking  

                                                                //the number is armstrong or not

}  }