Nombers of program

Read short from file using DataInputStream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadShortFromFile

{

public static void main(String[] args)

{

 String strFilePath = "C://FileIO//readShort.txt";

   

try

{

FileInputStream fin = new FileInputStream(strFilePath);

DataInputStream din = new DataInputStream(fin);

short s = din.readShort();

System.out.println("short : " + s);

din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

System.out.println("IOException : " + ioe);

      }

   }

}

 

Java String isEmpty

public class JavaStringIsEmptyExample

{

public static void main(String args[])

{

String str1 = "";

String str2 = null;

String str3 = "Hello World";

System.out.println("Is String 1 empty? :" + str1.isEmpty()); System.out.println("Is String 3 empty? :" + str3.isEmpty());

   }

}

Java float

import java.util.*;

public class JavaFloatExample

 {

public static void main(String[] args)

{

float = ;

float f = 10.4f;

System.out.println("Value of float variable f is :" + f);                

   }

}

Compare Two Numbers

public class CompareTwoNumbers

{

public static void main(String[] args)

{

int num1 = 324;

int num2 = 234;               

if(num1 > num2)

{

System.out.println(num1 + " is greater than " + num2);

}

else if(num1 < num2)

{

System.out.println(num1 + " is less than " + num2);

}

else

{

System.out.println(num1 + " is equal to " + num2);

      }

   }

}