private void checkArmstrong() {
		int len = this.numField.getText().trim().toCharArray().length;
		if (len != 0) {
			long num = Integer.parseInt(this.numField.getText().trim());
			long sum = 0L;
			long temp = num;
			while (temp > 0) {
				sum = (long) (sum + java.lang.Math.pow(temp % 10, len));
				temp = temp / 10;
			}
			if (sum == num) {
				this.resultLabel.setForeground(Color.black);
				this.resultLabel.setText("Number Is ArmStrong");
			} else {
				this.resultLabel.setForeground(Color.red);
				this.resultLabel.setText("Number Is Not ArmStrong");
			}
		}
	}