Android

java

        linearLayout = findViewById(R.id.linearLayout);

        Random random = new Random();

        for (int i = 0; i < 100; i++) {

            TextView red = new TextView(this);
            red.setText("Hello");
            red.setTextSize(30);
            red.setBackgroundColor(
                    Color.rgb(155 + i, i, 0));

            TextView blue = new TextView(this);
            blue.setText("World");
            blue.setBackgroundColor(
                    Color.rgb(
                            random.nextInt(255), 255 - i, 155 + i));
            blue.setTextSize(30);

            linearLayout.addView(red,
                    LinearLayout.LayoutParams.MATCH_PARENT);
            linearLayout.addView(blue,
                    LinearLayout.LayoutParams.MATCH_PARENT);
        }