Source Code : Triangular numbers

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Triangular numbers

     
import java.io.IOException;

public class Triangle {

  public static void main(String[] args) throws IOException {
    int theNumber = 100;
    int theAnswer = triangle(theNumber);
    System.out.println("Triangle=" + theAnswer);
  }

  public static int triangle(int n) {
    if (n == 1)
      return 1;
    else
      return (n + triangle(n - 1));
  }

}

           
         
    
    
    
    
  

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