hi friend,

Here I am giving the code for printing pascal triangle in Java. Hope this will helpful for you.

public class PascalTriangleExample {

    public void displayTriangle() {
        int[] row = new int[0];

        for (int i = 0; i < 6; i++) {

            row = calculateRowValue(row);
            for (int j = 0; j < 6 - i; j++) {
                System.out.print(" ");
            }
            for (int col = 0; col < row.length; col++) {
                System.out.print(row[col] + " ");
            }
            System.out.println();
        }
    }

    public int[] calculateRowValue(int[] prevRow) {

        int[] rowValue = new int[prevRow.length + 1];
        rowValue[0] = 1;
        rowValue[rowValue.length - 1] = 1;
        for (int c = 1; c < rowValue.length - 1; c++) {
            rowValue[c] = prevRow[c - 1] + prevRow[c];
        }
        return rowValue;
    }

    public static void main(String[] args) {

        PascalTriangleExample pt = new PascalTriangleExample();
        pt.displayTriangle();
    }
}