Pascal's Triangle - Java Pt. 1

public class PascalTriangleDubs {

//Where the triangle is created and displayed
public static void main(String[] args){

Scanner in = new Scanner(System.in);

System.out.print("Enter the number of rows you want displayed from Pascal's Triangle: ");
int numRows = in.nextInt(); //stores number of rows user wants displayed

displayTriangle(pascalTriangle(numRows));

} //end main

public static int[][] pascalTriangle(int n){

int[][] triangle = new int[n][]; //creates a matrix to store the triangle

for(int i = 0; i < n; i++){

triangle[i] = new int[i+1];

for(int j = 0; j < triangle[i].length; j++){

triangle[i][j] = choose(i, j);

}

}

return(triangle);
}

public static int choose(int n, int k){
return(factorial(n))/(factorial(k)*factorial(n-k));
}

public static int factorial(int num){
int var = 1;
if(num == 0)
return(1);

for(int i = 1; i var *= i;

return(var);
}

public static void displayTriangle(int[][] triangle){
for(int i = 0; i < triangle.length; i++){

for(int j = 0; j < triangle[i].length; j++){

System.out.print(triangle[i][j] + "\t");

}

System.out.println();

}
}
}