在xml文本视图中显示java字符串

<TextView
    android:id="@+id/myTextView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Hello World!"
    />

TextView myTextView = findViewById(R.id.myTextView);
String javaString = "This is a Java string.";
myTextView.setText(javaString);