Here is my code. I want to change the format of the text partially inside the string.

```
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    String stuff[] = {

"this has to be  the bold part   this has to be normal part",
"this part of text has to be green      this part of text has to be blue",
"this is number 3 bold",

```

}