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New code examples in category Java
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Geetha Bharathi A 2021-08-27 14:42:02
How to remove backstack fragment
You add to the back state from the FragmentTransaction and remove from the backstack using FragmentManager pop methods: FragmentManager manager = getActivity().getSupportFragmentManager(); FragmentTransaction trans = manager.beginTransaction(); trans.rem... Add solution -
Saforrest 2021-08-27 14:14:01
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference
Null pointer try to say that the textview is null. That can happen beacause the findviewbyid is not matching with the right one on your xml. Be sure your id matches on your xml and java file Add solution -
Y Narasimha Reddy 2021-08-27 13:55:01
android how to determine if the edit text focus changes
for (EditText view : editList){ view.setOnFocusChangeListener(focusListener); } .... private OnFocusChangeListener focusListener = new OnFocusChangeListener() { public void onFocusChange(View v, boolean hasFocus) { if (hasFocus){ ... Add solution -
Colette Simpson 2021-08-27 13:45:01
Mergesort parallelization using Spark
import random import time from pyspark import SparkContext def execute_merge_sort(generated_list): start_time = time.time() sorted_list = merge_sort(generated_list) elapsed = time.time() - start_time print('Simple merge sort: %f sec' % el... Add solution -
Mostafa Khaled 2021-08-27 12:56:02
Java program to convert decimal number to binary & count number of 1s
// decimal to binary conversion in java import java.util.Scanner; public class DecimalBinaryDemo { public static void main(String[] args) { int number, count = 0, temp; String strConvert = ""; Scanner sc = new Scanner(Sys... Add solution