问toString()在Date对象上返回意想不到的内容

EN

changeStringDateFormat(json.getString("date_1"), "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd");

public String changeStringDateFormat(String date, String inputDateFormat, String outPutDateFormat) {
    Date initDate = null;
    try {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(inputDateFormat);
        initDate = simpleDateFormat.parse(date);
    } catch (ParseException e) {
        e.printStackTrace();
    }
    SimpleDateFormat outputFormatter = new SimpleDateFormat(outPutDateFormat);
    String parsedDate = outputFormatter.format(initDate);
    return parsedDate;
}

 public class MainActivity extends AppCompatActivity {
    TextView my_text;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        my_text = findViewById(R.id.my_text);

        String pattern = "yyyy-MM-dd HH:mm:ss";
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
        String date = simpleDateFormat.format(new Date());
        Toast.makeText(getApplicationContext(), "" + date, Toast.LENGTH_SHORT).show();
        my_text.setText("Your Date is :  " + date);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="mydemo.com.anew.MainActivity">

    <TextView
        android:id="@+id/my_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</android.support.constraint.ConstraintLayout>

myJavaUtilDate          // Never use `java.util.Date`.
.toInstant()            // Convert from legacy class to modern replacement. Returns a `Instant` object, a moment in UTC.
.atOffset(              // Convert from the basic `Instant` class to the more flexible `OffsetDateTime` class.
    ZoneOffset.UTC      // Constant defining an offset-from-UTC of zero, UTC itself.
)                       // Returns a `OffsetDateTime` object.
.format(                // Generate a `String` with text representing the value of this `OffsetDateTime` object.
    DateTimeFormatter.ISO_LOCAL_DATE_TIME  // Pre-defined formatter stored in this constant. 
)                       // Returns a `String` object.
.replace( "T" , " " )   // Replace the standard `T` in the middle with your desired SPACE character.

Instant instant = myJavaUtilDate.toInstant() ;  // New method on old class for converting to/from java.time classes.

String output = instant.toString() ;  // Generate text in standard ISO 8601 format.

Duration d = Duration.between( start , stop ) ;  // Calc elapsed time.

OffsetDateTime odt = instant.atOffset( ZoneOffset.UTC ) ;

String output = odt.format( DateTimeFormatter.ISO_LOCAL_DATE_TIME )
                   .replace( "T" , " " ) ;

ZoneId z = ZoneId.of( "Africa/Tunis" ) ;
ZonedDateTime zdt = instant.atZone( z ) ;

String output = zdt.format( f ) ;