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Android Studio not able to detect emulator Ubuntu 16.04

Suryateja Pericherla Categories: Android. No Comments on Android Studio not able to detect emulator Ubuntu 16.04

After a long time I was trying out Android Studio on my Ubuntu 16.04 LTS desktop. The Android Studio version was 3.3. Installation went smoothly after following these installation instructions.     After the installation is completed, a new project was created with a basic activity containing a “Hello Wold” label. Now, it was time […]

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Openstack Devstack Currently Installed Pip Version 1 Error

Suryateja Pericherla Categories: Cloud. No Comments on Openstack Devstack Currently Installed Pip Version 1 Error

Today when I was trying to setup the OpenStack cloud environment by using the file stack.sh available in the Devstack, I encountered the following error:   /opt/stack/devstack/inc/python:213 Currently installed pip version 1 does not meet minimum requirements (>=6)   The above error is due to wrong use of ‘strip’ function in the code. To eliminate […]

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Openstack Ocata Installation on Ubuntu 16.04

Suryateja Pericherla Categories: Cloud. 1 Comment on Openstack Ocata Installation on Ubuntu 16.04

  Following are instructions for installing OpenStack (ocata) on Ubuntu 16.04 LTS VM.   When creating Ubuntu VM, the RAM size must be at least 4GB. Otherwise, OpenStack may show errors while installing.   Add user named “stack” using the following command: sudo useradd -s /bin/bash -d /opt/stack -m stack   Subscribe to our monthly […]

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Java program to print all unique words of a string

Suryateja Pericherla Categories: Strings. 5 Comments on Java program to print all unique words of a string

In this article we will learn to implement a java program to print all unique words of a string. A java program is provided below which reads a line of text from the user and prints out the unique words in ascending order.   We use TreeMap class from collections framework to store the frequency […]

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Java program to print only unique characters in a string

Suryateja Pericherla Categories: Strings. No Comments on Java program to print only unique characters in a string

In this article we will learn to implement a Java program to print only unique characters in a string. A Java program is provided below which reads a string from the user, and prints out only the unique characters in the string in insertion order.   First we find out the frequency of each character […]

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Java program to print the frequency of characters in a string

Suryateja Pericherla Categories: Strings. No Comments on Java program to print the frequency of characters in a string

In this article we will learn to implement a Java program to print the frequency of characters in a string. A Java program is provided below reads the string and gives the frequency of each character (number of times a character is repeated).   This java program reads a string from the user, calculates frequency […]

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Java program to remove duplicate characters from a string

Suryateja Pericherla Categories: Strings. 2 Comments on Java program to remove duplicate characters from a string

In this article we will learn to implement a Java program to remove duplicate characters from a string. A java program is provided below that accepts a string from the user, ignores any duplicate characters and prints each character only once in ascending order.   We use TreeSet class from collections framework for printing the characters […]

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Python Programming Tutorial

Suryateja Pericherla Categories: Python Programming. 14 Comments on Python Programming Tutorial

Welcome to Python Programming Tutorial series created by Startertutorials. This is a comprehensive programming tutorial which covers almost all the core concepts in Python programming language. I hope you will enjoy the tutorial. You can give feedback by commenting below. Python is a multi-paradigm language gaining widespread popularity now-a-days due to its simplicity and expressiveness. […]

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Standard Libraries in Python Programming

Suryateja Pericherla Categories: Python Programming. 2 Comments on Standard Libraries in Python Programming

This article provides a comprehensive overview of standard libraries in Python programming language along with example programs.   Introduction to Standard Library A library is a set of files which contains pre-defined code that we can use in our own programs. For example in our Python programs we are using print() and input() for printing […]

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