Pass text value to another text (java)

I want to build a category list scrollview in android studio using java. I having truble to understand how to pass value from TextView to anthor TextView with same value in other activity.

activity_first. xml

<TextView
android:id="@+i d/PersonName"
android:layout_ width="match_pa rent"
android:layout_ height="wrap_co ntent"
android:ems="10 "
android:textCol orHint="@color/black"
android:backgro und="@android:c olor/transparent"
android:text="N ame" />

FirstActivity.j ava

public class FirstActivity extends AppCompatActivi ty {
TextView PersonName;

@Override
protected void onCreate(Bundle savedInstanceSt ate) {
super.onCreate( savedInstanceSt ate);
setContentView( R.layout.activi ty_first);

PersonName = (TextView)findV iewById(R.id.Pe rsonName);

PersonName.setO nClickListener( new View.OnClickLis tener() {
@Override
public void onClick(View v) {
Intent p = new Intent(FirstAct ivity.this, SecondActivity. class);
startActivity(p );
}
});
}
}

In second activity i have a scrollview.

activity_second .xml

<ScrollView
android:layout_ width="match_pa rent"
android:layout_ height="match_p arent">

<LinearLayout
android:layout_ width="match_pa rent"
android:layout_ height="wrap_co ntent"
android:orienta tion="vertical" >

<TextView
android:id="@+i d/textView"
android:layout_ width="match_pa rent"
android:layout_ height="wrap_co ntent"
android:text="F ather" />

<TextView
android:id="@+i d/textView2"
android:layout_ width="match_pa rent"
android:layout_ height="wrap_co ntent"
android:text="M other" />
</LinearLayout>
</ScrollView>

in activity_second .xml when I press on TextView it will return me with the value Father (id:textView) to the FirstActivity and change the TextView (id:PersonName) to father and if I'll do it with value mother (id:textView2) it will do same action and return me to FirstActivity.