PowerPoint Presentation On Packages & Interfaces Of Java

PowerPoint Presentation On Packages & Interfaces Of Java

java.io

&

java.util

Exploring java.util

Exploring java.util

Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).

Java Program For Sorting A Given List Of Names In Alphabetical Order

/* Java Program For Sorting A Given List Of Names In Alphabetical Order */

// File Name: stringsort.java

Java program that reads a line of integers and then display each integer and the sum of all integers

/* Java program that reads a line of integers and then display each integer and the sum of all integers (Use StringTokenizer Class Of java.util)*/

// File Name: sumofintegers.java

import java.io.*;
import java.util.*;
class sumofintegers {
public static void main(String arg[]) throws IOException {
int sum=0,n;
String s;
DataInputStream in=new DataInputStream(System.in);
System.out.print("Enter The Integers Saperating Them With Space ");
s=in.readLine();
StringTokenizer token =new StringTokenizer(s);
while(token.hasMoreTokens())
{
n=Integer.parseInt(token.nextToken());
sum+=n;
System.out.println(n);
}
System.out.println("Sum Of All The Integers Is : "+sum);
System.out.println("www.shashanktechnologies.blogspot.com");
}
}


Output:

Compilation: G:/shashank>javac sumofintegers.java

Interpretation: G:/shashank>java sumofintegers

Java Program That Checks whether A Given String Is A Palindrome Or Not

/* Java Program That Checks whether A Given String Is A Palindrome Or Not */

// File Name: palindrome.java

Java Program To Multiply Two Given Matrices

/* Java Program To Multiply Two Given Matrices*/
// File Name: matmult.java

Java Program To Print Prime Numbers Using Command-Line Arguments

/* Java Program That Promotes The User For An Integer And Then Prints Out
All Prime Numbers upto That integer */

Java Program To Print Prime Numbers

/* Java Program That Promotes The User For An Integer And Then Prints Out
All Prime Numbers upto That integer */

// File Name: prime.java

import java.io.*;
class prime {
public static void main(String[] args) throws IOException {
String s;
int n,i,j;
DataInputStream in=new DataInputStream(System.in);
System.out.print("Enter The Number:");
s=in.readLine();
n=Integer.parseInt(s);
System.out.println("Given Value Of n Is :"+n);
System.out.print("Prime numbers Generated For "+n+" Are :");
for(i=0;i<n;i++)
{
for(j=2;j<i;j++)
{
if(i%j==0)
break;
}
if(i==j)
System.out.print(i+",");
}
System.out.print("\n");
System.out.println("www.shashanktechnologies.blogspot.com");
}
}


OUTPUT:

COMPILATION: G:\shashank>javac prime.java

INTERPRETATION: G:\shashank>java prime

Java Program For Generating Fibonacci Sequence With Recursion Method

/* Java Program For Generating Fibonacci Sequence Is Defined by The Following Rule:
The first two values in the sequence are 1 & 1. Every subsequent value is the
sum of two values preceding it.*/

Java Program For Generating Fibonacci Sequence

/* Java Program For Generating Fibonacci Sequence Is Defined by The Following Rule:
The first two values in the sequence are 1 & 1. Every subsequent value is the
sum of two values preceding it.*/

// File Name: fibonacci.java

import java.io.*;
class fibonacci {
public static void main(String args[]){
int a=1,b=1,c=a+b,n;
n=Integer.parseInt(args[0]);
                System.out.println("www.shashanktechnologies.blogspot.com");
System.out.println("Given Value For n Is:"+n);
System.out.print("Fibonacci Sequence Generated For "+n+" Is: ");
System.out.print(a+","+b+",");
while(c<=n){
System.out.print(c+",");
a=b;
b=c;
c=a+b;
}

}
}


OUTPUT:

COMPILATION: G:\shashank>javac fibonacci.java

INTERPRETATION: G:\shashank>java fibonacci 10

Java program to print all real solutions to the qudratic eq ax2+bx+c=0 Read a,b,c values and use the formula (–b+sqrt(b2-4ac))/2a

/* Java program to print all real solutions to the
qudratic eq ax2+bx+c=0 Read a,b,c values
and use the formula (–b+sqrt(b2-4ac))/2a */

Java program to print all real solutions to the qudratic eq ax2+bx+c=0 Read a,b,c values and use the formula (–b+sqrt(b2-4ac))/2a with command-line arguments

/* Java program to print all real solutions to the
qudratic eq ax2+bx+c=0 Read a,b,c values
and use the formula (–b+sqrt(b2-4ac))/2a  with command-line arguments*/