Python variable length arguments

Ever wondered what these *varargs or *kwargs in python functions parameter mean? Let me explain! varargs varargs is short for variable arguments. It is declared like this: def print_person_varargs(name, *vargs): pass You can pass as many arguments as you like. In this case we pass two after the first positional argument ‘name:’ print_person_varargs(“Jörn”, 40, “Emskirchen”)…

Introduction to the Julia programming language

Installation You can download the installer at https://julialang.org/ On Windows you have to set the path manually, e.g. C:\Julia-1.3.1\bin Let’s fire up a command line and type: julia You will be greeted with a nice little ascii art and the prompt. If You want to close the prompt You can use CTRL + D

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Android Services

Service Manager $ adb shell service list shell@g3:/ $ service list Found 132 services: 0 AtCmdFwd: [com.qualcomm.atfwd.IAtCmdFwd] 1 lge.apdu: [com.lge.smartcard.internal.apdu.uicc.IUiccAccess] 2 telecom: [com.android.internal.telecom.ITelecomService] 3 phone: [com.android.internal.telephony.ITelephony]

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Android Spinner

Spinner spinner = findViewById(R.id.currency_spinner); // Create an ArrayAdapter using the String array and a spinner layout ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(this, R.array.spinner_values, R.layout.spinner_item); // Specify the layout to use when the list of choices appears adapter.setDropDownViewResource(R.layout.spinner_dropdown_item); // Apply the adapter to the spinner spinner.setAdapter(adapter); spinner.setOnItemSelectedListener(new OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position,…