Showing posts with label JAVA. Show all posts
Showing posts with label JAVA. Show all posts

Saturday, November 23, 2013

Java prog#147. JavaCV : How to Access webcam using javacv and Java Netbeans






















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JavaCV and WebCam
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Webcam Capture in Java

Friday, November 22, 2013

Java prog#146. JavaCV : How to set up Opencv and Javacv in windows 7





























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Sunday, August 18, 2013

Java prog#145. How to convert text to speech using Java











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Text to Speech in java
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Thursday, June 27, 2013

How to convert text to binary in Java

Convert String to Binary in Java




import java.io.*;

public class TexttoBinary {
  private static final int maxBytes = 3;
  public static void main(String[] args) {
  
  BufferedReader in = 
  new BufferedReader(new InputStreamReader(System.in));
  do {
  try {
  System.out.print("Type the number to parse: ");
  int number = Integer.parseInt(in.readLine());
  int Bit;
  String result = "";
  for (int i = maxBytes*8; i >= 0; i--) {
  Bit = 1 << i;
  if (number >= Bit) {
  result += 1;
  number -= Bit;
  }
  else {
  result += 0;
  }
  }
  System.out.println(result);
  }
  catch (NumberFormatException e) {
  System.exit(0);
  }
  catch (IOException e) {
  e.printStackTrace();
  System.exit(1);
  }
  }
  while (true);
  }
}



-----------------------------------------
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Convert Number to String in Java

Java Program to Convert Number to String



class NumToStr {
  public static void main(String[] args) {
  int i  = 40;
  float f  = (float) 100.0;
  long l = 3000000;
  String s = new String();

  s = String.valueOf(i);
  System.out.println ("int i = " + s);
  s = String.valueOf(f);
  System.out.println ("float f = " + s);
  s = String.valueOf(l);
  System.out.println ("long l = " + s);
  s = new Integer(i).toString();
  System.out.println ("int i = " + s);
  s = new Float(f).toString();
  System.out.println ("float f = " + s);
  s = new Long(l).toString();
  System.out.println ("long l = " + s);
  }
}





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Tuesday, April 30, 2013

How to Convert from binary to hex in java




Simple One line code to convert String containing a binary value to Hex


String bin = Integer.toHexString(Integer.parseInt(binOutput, 2));


Full Code for conversion


import java.io.*;
import java.lang.*;



public class  BinaryToHexadecimal{
  public static void main(String[] args)throws IOException{
  BufferedReader bf= new BufferedReader(new InputStreamReader(System.in));
  System.out.println("Enter the Binary number:");
  String hex = bf.readLine();
  long num = Long.parseLong(hex);
  long rem;
  while(num > 0){
  rem = num % 10;
  num = num / 10;
  if(rem != 0 && rem != 1){
  System.out.println("This is not a binary number.");
  System.out.println("Please try once again.");
  System.exit(0);
  }
  }
  int i= Integer.parseInt(hex,2);
  String hexString = Integer.toHexString(i);
  System.out.println("Hexa decimal: " + hexString);
  }
}

run:
Enter the Binary number:
101010
Hexa decimal: 2a

----------------------------------------------
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String containing a binary value to Hex

How to convert binary value to decimal in Java


How to convert binary to decimal in java




public static int integerfrmbinary(String str){
    double j=0;
    for(int i=0;i<str.length();i++){
        if(str.charAt(i)== '1'){
         j=j+ Math.pow(2,str.length()-1-i);
     }

    }
    return (int) j;
}


--------------------------------------------------------------------------------------

Other Way:


import java.lang.*;
import java.io.*;

public class BinaryToDecimal{
  public static void main(String[] args) throws IOException{
  BufferedReader bf= new BufferedReader(new InputStreamReader(System.in));
  System.out.print("Enter the Binary value: ");
  String str = bf.readLine();
  long num = Long.parseLong(str);
  long rem;
  while(num > 0){
  rem = num % 10;
  num = num / 10;
  if(rem != 0 && rem != 1){
  System.out.println("This is not a binary number.");
  System.out.println("Please try once again.");
  System.exit(0);
  }
  }
  int i= Integer.parseInt(str,2);
  System.out.println("Decimal:="+ i);
  }
}


run:
Enter the Binary value: 1010
Decimal:=10

--------------------------------------------

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Decimal to Hexadecimal Converter in Java


Convert decimal integer to hexadecimal number example






import java.io.*;
import java.lang.*;

public class DecimalToHexadecimal{
  public static void main(String[] args) throws IOException{  
  BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
  System.out.println("Enter the decimal value:");
  String hex = bf.readLine();
  int i = Integer.parseInt(hex);
  String hex1 = Integer.toHexString(i);
  System.out.println("Hexa decimal: " + hex1);
  }
}


run:
Enter the decimal value:
16
Hexa decimal: 10


--------------------------------------------------------
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Convert Decimal to Octal in Java


convert decimal number octal java




import java.io.*;
import java.lang.*;

public class DecimalToOctal {
  public static void main(String[] args) throws IOException{
  BufferedReader buff = new BufferedReader(new InputStreamReader(System.in));
  System.out.println("Enter the decimal number:");
  String deci = buff.readLine();
  int value = Integer.parseInt(deci);
  String str = Integer.toString(value,8);
  System.out.println("octal:=" + str);
  }
}

run:
Enter the decimal number:
16
octal:=20



------------------------------------------------------

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Convert Decimal into Binary in Java


Converting decimal to binary in Java



import java.lang.*;
import java.io.*;
public class DecimalToBinary{
  public static void main(String args[]) throws IOException{
  BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
  System.out.println("Enter the decimal value:");
  String hex = bf.readLine();
  int i = Integer.parseInt(hex);  
  String by = Integer.toBinaryString(i);
  System.out.println("Binary: " + by);
  }
}  


run:
Enter the decimal value:
10
Binary: 1010
BUILD SUCCESSFUL (total time: 9 seconds)

Other Way :


public class NumberConverter {
   public static void main(String[] args) {
       int i = Integer.parseInt(args[0]);
       toBinary(i);
   }

   public static void toBinary(int int1){
       System.out.println(int1 + " in binary is");
       System.out.println(Integer.toBinaryString(int1));
   }
}

-----------------------------------------------------

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