Textbox1 to Equal Textbox2

Question

There are two TextView, I want to check the equality of data in these textbox. I wrote one IF function, but the code is running incorrectly. Date time data, date and Time written in the test data I want to check the equality between textler.

TextView textView1 = (TextView) findViewById(R.id.current_time_view);
                String tarihsaatdata = textView1.getText().toString();

                String tarihvesaatText = (tarihTextView.getText().toString()) + " " + (saatTextView.getText().toString());

                if (tarihsaatdata == tarihvesaatText){
                    if(aSwitch.isChecked()){
                    Map<String, Object> newStatus = new HashMap<>();
                    newStatus.put("001", true);

                    ref.setValue(newStatus);
                }else{
                        Map<String, Object> newStatus = new HashMap<>();
                        newStatus.put("001", false);

                        ref.setValue(newStatus);
                    } }else{

                }

            }
        });

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milad salimi · Accepted Answer · 2019-03-12T08:03:36.613

2

In Java, two strings (and in general, two objects) must be compared using equals(), not ==.

Using the == operator will compare the references to the strings not the string themselves, whereas the method equals() tests two objects for equality (meaning: testing if two objects have the same value). Almost always you're interested in equality, not in identity.

You have to use equals like this :

if (tarihsaatdata.equals(tarihvesaatText)) {
    // ...
} else {
    // ...
}

edited Mar 12 '19 at 08:03

answered Mar 12 '19 at 07:50

milad salimi

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Please also explain *why*, what's the difference, when to use one or the other. – Eugen Pechanec Mar 12 '19 at 07:51

score 0 · Answer 2 · answered Mar 12 '19 at 07:51

if you want to compare two string then use equals().

TextView textView1 = (TextView) findViewById(R.id.current_time_view);
                String tarihsaatdata = textView1.getText().toString();

                String tarihvesaatText = (tarihTextView.getText().toString()) + " " + (saatTextView.getText().toString());

                if (tarihsaatdata.equals(tarihvesaatText)){
                    if(aSwitch.isChecked()){
                        Map<String, Object> newStatus = new HashMap<>();
                        newStatus.put("001", true);

                        ref.setValue(newStatus);
                    }else{
                        Map<String, Object> newStatus = new HashMap<>();
                        newStatus.put("001", false);

                        ref.setValue(newStatus);
                    } }else{

                }

            }
        });

Textbox1 to Equal Textbox2

2 Answers2