Function Overloading using JAVA ( Method 1 )

 public class FunctionOverloading1 {

    void f()

    {

        System.out.println("this is without parameter");

    }

    void f(int x)

    {

        System.out.println("this is integer parameter");

    }

    void f(double x)

    {

        System.out.println("this is double parameter");

    }

    void f(char x)

    {

        System.out.println("this is character parameter");

    }

    public static void main(String[] args) {

        FunctionOverloading1 ob=new FunctionOverloading1();

        ob.f();

        ob.f(5);

        ob.f(10.5);

        ob.f('a');

    }

}

Factorial Program using JAVA

 public class Factorial {

    public static void main(String[] args) {

        int i,factorial=1,number=5;

        for(i=1;i<=number;i++)

        {

            factorial=factorial*i;

        }

        System.out.println("Factorial of "+number+" is "+factorial);

    }

}

Constructor Overloading using JAVA

 class Constructor

{

    Constructor()

    {

        System.out.println("this is without parameter");

    }

    Constructor(int x)

    {

        System.out.println("this is integer parameter");

    }

    Constructor(float x)

    {

        System.out.println("this is float parameter");

    }

    Constructor(char x)

    {

        System.out.println("this is character parameter");

    }

}

public class ConstructorOverloading {

    public static void main(String[] args) {

        Constructor ob1=new Constructor();

        Constructor ob2=new Constructor(5);

        Constructor ob3=new Constructor(10.2f);

        Constructor ob4=new Constructor('a');

    }

}

JAVA - COMMAND LINE - EXAMPLE 2

 public class CommandLine2 {

    public static void main(String[] args) {

        int i,sum=0;

        for (i=0;i<args.length;i++)

        {

            sum=sum+Integer.parseInt(args[i]);

        }

        System.out.println("Sum is="+sum);

    }

}

JAVA - COMMANAD LINE - EXAMPLE 1

 public class CommandLine1 {

    public static void main(String[] args) {

        int a,b,c;

        a=Integer.parseInt(args[0]);

        b=Integer.parseInt(args[1]);

        c=a+b;

        System.out.println("Sum is="+c);

    }

}

BufferedReader String Example2

 import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

public class BuffReadStr2 {

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

       InputStreamReader ob=new InputStreamReader(System.in);

       BufferedReader br=new BufferedReader(ob);

       System.out.println("Enter a string");

       String s = br.readLine();

       System.out.println(s);

    }

}

BufferedReader String Example1

 BufferedReader String Example1

import java.io.*;

public class BuffReadStr1 {

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

      int n=10;

      String s="Sunday";

      System.out.printf("value=%d,%s",n,s);  

    }

}