JAVA IN ARRAY TO PROGRAM

Java Convert int Array To String

import java.util.Arrays;

public class ConvertIntArrayToStringExample

{

public static void main(String args[])

{

int[] intNumbers = new int[]{1, 2, 3, 4,5};

StringBuffer sbfNumbers = new StringBuffer();

String strSeparator = " ";

if(intNumbers.length > 0){

sbfNumbers.append(intNumbers[0]);

 for(int i=1; i < intNumbers.length; i++)

{

sbfNumbers.append(strSeparator).append(intNumbers[i]);

}

}

System.out.println("int array converted to String using for loop");

System.out.println(sbfNumbers.toString());

String strNumbers = Arrays.toString(intNumbers);

System.out.println("String generated from Arrays.toString method: " + strNumbers);

 strNumbers = strNumbers.replaceAll(", ", strSeparator).replace("[", "").replace("]", "");

System.out.println("Final String: " + strNumbers);

  }

}

Java Reverse String Array

import java.util.Collections;

import java.util.List;

import java.util.Arrays;   

public class ReverseStringArrayExample

{

public static void main(String args[])

{

String[] strDays = new String[]{"Sunday", "Monday", "Tuesday", "Wednesday"};

List list = Arrays.asList(strDays);

Collections.reverse(list);  strDays = (String[]) list.toArray();

System.out.println("String array reversed");

for(int i=0; i < strDays.length; i++)

{

System.out.println(strDays[i]);

       }

    }

}

String Buffer To byte Array

public class StringBufferToByteArrayExample

{

 public static void main(String[] args)

{           

StringBuffer sbf = new StringBuffer("Java StringBuffer To byte array example");

 byte bytes[] = sbf.toString().getBytes();

 System.out.println("StringBuffer converted to byte array");

   }

}

String Buffer To File

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

public class JavaStringBufferToFileExample

{

 public static void main(String[] args) throws IOException

{

StringBuffer

sbf = new StringBuffer();

sbf.append("StringBuffer contents first line."); sbf.append(System.getProperty("line.separator"));sbf.append("StringBuffer contents second line.");

BufferedWriter bwr = new BufferedWriter(new FileWriter(new File("d:/demo.txt")));

bwr.write(sbf.toString());

bwr.flush();

bwr.close();

System.out.println("Content of StringBuffer written to File.");

   }

}

Convert Byte object to String object

public class ByteToStringExample

{

public static void main(String[] args)

{

Byte bObj = new Byte("10");

String str = bObj.toString();

System.out.println("Byte converted to String as " + str);

    }

}

Display Day of Week using Java Calendar

import java.util.Calendar;

public class DisplayDayOfWeek

{

public static void main(String[] args)

 {

 Calendar now = Calendar.getInstance();

System.out.println("Current date : " + (now.get(Calendar.MONTH) + 1)

+ "-"

+ now.get(Calendar.DATE)

+ "-"

+ now.get(Calendar.YEAR));

String[] strDays = new String[]

{

"Sunday",

"Monday",

"Tuesday",

"Wednesday",

"Thusday",

"Friday",

"Saturday"

};

System.out.println("Current day is : " +

strDays[now.get(Calendar.DAY_OF_WEEK) - 1]);

   

     }

  }