You are passing two arguments as String type, “20”, “10”: int myBmi = myBmiCal(“20”, “10”); But it should be int type: int myBmi = myBmiCal(20, 10); “” – it means just empty String in Java. “20” – it means String with value 20. “20” and 20 are different types in Java. Here is documentation to … Read more
It is keeping the same state because you are using the same shared preference for both checkboxes. Also you can use only one editor public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final CheckBox checkBox = (CheckBox) findViewById(R.id.checkBox); final CheckBox checkBox2 = (CheckBox) findViewById(R.id.checkBox2); SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this); final … Read more
Ok so I have been testing things out lately to see how can I use a single method to change the values for int mana and health. I do not know if this is the right way to do it, but its working very well in my case. For those who maybe are looking for … Read more
Try the below regex to match the literal [,] symbols, “[\\[\\]]” DEMO 3 solved Java Regex: Need to find expressions that include ‘[‘ character [duplicate]
This routine returns -1, 0, or 1 as values, so you can do something like this: String first; String second; … assign first and second if( first.compareToIgnoreCase(second) < 0) { // second is less than first… } else if first.compareToIgnoreCase(second) == 0) { // second is same as first… } else if first.compareToIgnoreCase(second) > 0) … Read more
The = operator invokes the set<Field> method in Groovy. This is the reason why the classpath of the runDynamoDB task only contains a single file. You should use the classpath(Object… paths) which appends to the classpath: Change the line to the following example to add the file to the default classpath: classpath files(…) // without … Read more
You could create your own type and create a bad hash function: public class BadHash { private String aString; public BadHash(String s) { aString = s; } public int hashCode() { return aString.length(); } public boolean equals(Object other) { // boilerplate stuff BadHash obj = (BadHash) other; return obj.aString.equals(aString); } } This will make it … Read more
Static, not dynamic Can someone tell me why it’s not updating ? A LocalTime represents a particular time of day. The object is immutable, unchanging, and cannot be updated. Calling LocalTime.now() captures the time of day at that moment of execution. The value will not change later. To get the current time of day later, … Read more
Use the Socket class. There is no Poll method, however there are other methods that can be used to check the socket status. For example, you can use Socket.isOutputShutdown() to check if the output stream is available (Whether it has been shutdown or not), and you can use Socket.getInputStream().available() to get the number of bytes … Read more
First off, note that if and else always apply to the single statement that follows them. You can use { } to group multiple statements into a single compound statement, but the conditional then applies to the single { … } statement. Consider these two equivalent statements: if (foo) { bar(); } if (foo) bar(); … Read more
I don’t recommend you to use break statement if it’s not strict necesary it’s use. It isn’t a good practise in programming (look at this: Is it a bad practice to use break in a for loop?) and I recommend you to use another alternatives, instead of break that could make the same work. For … Read more
class MainActivity extends Activity { protected EditText textVoice; Button button; TextToVoice textToVoice; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.ln_dialog); textVoice = (EditText) findViewById(R.id.textVoice); button = (Button) findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { textToVoice = new TextToVoice(MainActivity.this,textVoice.getText().toString()); textToVoice.listenVoice(); } }); } public class TextToVoice extends MainActivity { String textString; Context context; … Read more
The problem here is that the hashCode of an array does not depend on the contents, but on the reference. That means that if you have two conjunction / disjunction keys that are equal, but the contained arrays are not the same objects, then the hashcode of the keys will be different. The solution that … Read more
The ternary conditional operator must return a value. The second and third operands can’t be statements that don’t return anything. They must be expressions that return a value. You could switch it to : System.out.println(banana ? “True” : “False”); Note that banana == true || false is equivalent to banana == true, which is equivalent … Read more
Always use equals since == doesn’t always work. Even though objects are the same in memory it may be stored in different places, and == checks for objects identity and not equality. solved Checking if strings are equal in java using == [duplicate]