What does put extra do?

Intent i = new Intent(FirstScreen.this, SecondScreen.class);   
String keyIdentifer  = null;
i.putExtra("STRING_I_NEED", strName);

Source: stackoverflow.com

What does put extra do?

String newString
if (savedInstanceState == null) {
    extras = getIntent().getExtras();
    if(extras == null) {
        newString= null;
    } else {
        newString= extras.getString("STRING_I_NEED");
    }
} else {
    newString= (String) savedInstanceState.getSerializable("STRING_I_NEED");
}

Source: stackoverflow.com

Similar codes

0 vote164 views1 answer
Why String is popular HashMap key in Java?
Java
0 vote212 views1 answer
File with line numbers inserted java
Java
0 vote128 views1 answer
Android list index
Java
0 vote157 views1 answer
How to check that letter is not a number and is repeating or not in a sentence in java
Java
0 vote154 views1 answer
The root directory of the External Storage is:
Java
32 votes237 views3 answers
Java foreach method
Java
0 vote173 views1 answer
Reset a jTable without deleting rows
Java
0 vote195 views1 answer
Enum type spring boot entity
Java Spring
0 vote171 views1 answer
Icon share android
Java
1 vote187 views1 answer
Request permission foreground service
Java