Convert String To Int To String Base Of Operations On Diverse Radix

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This trial present how to 

  • Convert String (user piece of occupation inwards in EditText) to integer base of operations on radix, using parseInt(String string) and parseInt(String string, int radix).
  • Convert from integer dorsum to String base of operations on diverse radix using  toString(int i), toString(int i, int radix), toBinaryString(int i), toOctalString(int i) and toHexString(int i).

package com.example.androidstringformat;  import java.util.Locale;  import android.support.v7.app.ActionBarActivity; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; import android.widget.RadioButton; import android.widget.Spinner; import android.widget.TextView; import android.os.Bundle;  populace course of written report MainActivity extends ActionBarActivity {    RadioButton radioDefault, radioBinary, radioOctal, radio10, radioHex, radio32;  EditText edit1;  TextView textOut;  Button buttonPrint;    Spinner spAvailableLocale;  Locale[] availableLocales;       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);                  radioDefault = (RadioButton)findViewById(R.id.optDefault);         radioBinary = (RadioButton)findViewById(R.id.optBinary);         radioOctal = (RadioButton)findViewById(R.id.optOctal);         radio10 = (RadioButton)findViewById(R.id.opt10);         radioHex = (RadioButton)findViewById(R.id.optHex);         radio32 = (RadioButton)findViewById(R.id.opt32);                  edit1 = (EditText)findViewById(R.id.edit1);      textOut = (TextView)findViewById(R.id.printout);      buttonPrint = (Button)findViewById(R.id.buttonprint);            buttonPrint.setOnClickListener(onClickListener);      }          OnClickListener onClickListener =      novel OnClickListener(){     @Override    populace void onClick(View arg0) {     String strIn = edit1.getText().toString();      if(!strIn.equals("")){       int intIn = 0;            try{       if(radioDefault.isChecked()){        intIn = Integer.parseInt(strIn);       }else if(radioBinary.isChecked()){        intIn = Integer.parseInt(strIn, 2);       }else if(radioOctal.isChecked()){        intIn = Integer.parseInt(strIn, 8);       }else if(radio10.isChecked()){        intIn = Integer.parseInt(strIn, 10);       }else if(radioHex.isChecked()){        intIn = Integer.parseInt(strIn, 16);       }else if(radio32.isChecked()){        intIn = Integer.parseInt(strIn, 32);       }              String trial         = "default: " + Integer.toString(intIn) + "\n"        + "Binary: " + Integer.toBinaryString(intIn) + "\n"        + "Binary: " + Integer.toOctalString(intIn) + "\n"        + "Radix 10: " + Integer.toString(intIn, 10) + "\n"        + "Hex: " + Integer.toHexString(intIn) + "\n"        + "Radix 32: " + Integer.toString(intIn, 32);              textOut.setText(result);      }catch(NumberFormatException ex){       textOut.setText(ex.toString());      }           }         }};  } 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:paddingBottom="@dimen/activity_vertical_margin"     android:paddingLeft="@dimen/activity_horizontal_margin"     android:paddingRight="@dimen/activity_horizontal_margin"     android:paddingTop="@dimen/activity_vertical_margin"     android:orientation="vertical"     tools:context="com.example.androidstringformat.MainActivity" >      <TextView         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_gravity="center_horizontal"         android:autoLink="web"         android:text="https://rootandroid.org//"         android:textStyle="bold" />           <RadioGroup      android:layout_width="match_parent"      android:layout_height="wrap_content"      android:orientation="horizontal" >      <RadioButton          android:id="@+id/optDefault"          android:layout_width="0dp"          android:layout_weight="1"          android:layout_height="wrap_content"          android:text="default"           android:checked="true" />      <RadioButton          android:id="@+id/optBinary"          android:layout_width="0dp"          android:layout_weight="1"          android:layout_height="wrap_content"          android:text="Binary" />      <RadioButton          android:id="@+id/optOctal"          android:layout_width="0dp"          android:layout_weight="1"          android:layout_height="wrap_content"          android:text="Octal" />      <RadioButton          android:id="@+id/opt10"          android:layout_width="0dp"          android:layout_weight="1"          android:layout_height="wrap_content"          android:text="Radix 10" />      <RadioButton          android:id="@+id/optHex"          android:layout_width="0dp"          android:layout_weight="1"          android:layout_height="wrap_content"          android:text="Hex" />      <RadioButton          android:id="@+id/opt32"          android:layout_width="0dp"          android:layout_weight="1"          android:layout_height="wrap_content"          android:text="Radix 32" />  </RadioGroup>      <EditText         android:id="@+id/edit1"         android:layout_width="match_parent"         android:layout_height="wrap_content" />     <Button         android:id="@+id/buttonprint"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:text=" - Print - " />     <TextView         android:id="@+id/printout"         android:layout_width="match_parent"         android:layout_height="wrap_content"         android:textStyle="bold" />  </LinearLayout>