Codebook

#include <GL/glut.h> void display(void) { glClear(GL_COLOR_BUFFER_BIT); glPointSize(3.0); glBegin(GL_POINTS); glColor3f(1.0,1.0,0.0); glVertex2f(-0.5, -0.5); glColor3f(1.0,0.0,0.0); glVertex2f(-0.5, 0.5); glColor3f(0.0,0.0,1.0); glVertex2f(0.5, 0.5); glColor3f(0.0,1.0,0.0); glVertex2f(0.5, -0.5); glEnd(); glFlush(); } void init(){} int main(int argc, char** argv) { glutCreateWindow("simple"); glutDisplayFunc(display); init(); glutMainLoop(); }

#include <GL/glut.h>  int ww = 600, wh = 400; int first = 0; int xi, yi, xf, yf; void drawLine(int x1, int y1, int x2, int y2) { glClear(GL_COLOR_BUFFER_BIT); glLineWidth(5.0); glBegin(GL_LINES); glVertex2i(x1, y1); glVertex2i(x2, y2); glEnd(); glFlush(); } void display() { glClearColor(1.0, 1.0, 0.0, 1.0); glColor3f(1.0, 0.0, 0.0); glClear(GL_COLOR_BUFFER_BIT); glFlush(); } void mouse(int btn, int state, int x, int y) { if(btn==GLUT_LEFT_BUTTON && state == GLUT_DOWN) { switch(first) { case 0: xi = x; yi = (wh-y); first = 1; break; case 1: xf = x; yf = (wh-y); drawLine(xi,yi,xf,yf); first = 0; break; } } } void myinit() { glViewport(0,0,ww,wh); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(0.0,(GLdouble)ww,0.0,(GLdouble)wh); glMatrixMode(GL_MODELVIEW); } int main(int argc, char** argv) { glutInit(&argc,argv); glutInitDisplayMode (GLU...

Basic syntax of update() method is as follows db.COLLECTION_NAME.update (SELECTIOIN_CRITERIA, UPDATED_DATA)

To insert data into MongoDB collection, you need to use MongoDB's insert() or save()method. Basic syntax of insert() command is as follows: db.COLLECTION_NAME.insert(document) To query data from MongoDB collection, you need to use MongoDB's find() method. Basic syntax of find() method is as follows db.COLLECTION_NAME.find() To display the results in a pretty way, you can use pretty() method. SYNTAX: db.mycol.find().pretty() Apart from find() method there is findOne() method, that reruns only one document.

Basic syntax of drop collection command is as follows db.COLLECTION_NAME.drop()

Basic syntax of createCollection() command is as follows db.createCollection(name, options) option is optional

dropDatabase() command is used to drop a database

Command use database_name is used to create a database. You can use any name for database_name. If you want to show the database you must want to insert atleast one document into it.

Command show dbs used to show all the databases

Command db.stats() gives the detais of the particular database

You can get mongodb commands and descriptions using db.help()

1. *open a cmd *change the directotry as mongodb installation didirectory. eg:- C:\mongodb\bin>mongod 2. *open another cmd *change the directotry as mongodb installation didirectory. eg:- C:\mongodb\bin>mongo Then you can work with the 2nd cmd

*MongoDb is a Nosql database.This is something different from the RDBMS. *Colloction-This is like a table of RDBMS.

import java.util.*; public class TimeConvert { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter the value of seconds: "); int sec=s.nextInt(); int hr=sec/3600; int min=(sec-hr*3600)/60; sec=sec-(hr*3600+min*60); System.out.println(hr+"hours"+" "+min+"minites"+" "+sec+"seconds"); } }

public class Rec { public static double power(double base, int exponent) { if(exponent>0) { return (base*power(base,exponent-1)); } else if(exponent<0 data-blogger-escaped-br=""> { exponent=-exponent; return 1/(base*power(base,exponent-1)); } else { return 1; } } public static void main(String args []) { System.out.println(power(2,-3)); } }

public class gcd1 { public static int gcd(int x,int y) { if(y==0) { return x; } else { return gcd(y,x%y); } } public static void main (String args []) { System.out.println(gcd(10,5)); } }

public class fibnocci { static int fib(int n) { if((n==1)|| (n==2)) return 1; else return fib(n-1)+fib(n-2); } public static void main(String [] args) { System.out.println("fibnocci(7)= "+ fib(7)); } }

public class Base { public void decTobase(int n,int b) { if(n>0) { decTobase(n/b,b); System.out.print(n%b); } } public static void main(String args []) { Base a=new Base(); a.decTobase(15,2); System.out.println(); a.decTobase(65,4); System.out.println(); a.decTobase(511,8); System.out.println(); }

public class factorial { static int fact(int n) { if(n==0 || n==1) return 1; else return n*fact(n-1); } public static void main(String [] args) { System.out.println("Factorial(4)="+fact(4)); } }

public class TwoDArray { public static void main(String args[]) { int [][] a={{1,2,3},{4,5,6},{7,8,9}}; for(int row=0;row<3 data-blogger-escaped-br="" data-blogger-escaped-row=""> { for(int col=0;col<3 data-blogger-escaped-br="" data-blogger-escaped-col=""> System.out.print(a[row][col]); System.out.println(); } } }

class RowSum { int A[][]={{1,0,0,1},{1,-2,0,1},{-1,2,2,1}}; int B[][]={{1,1,-1,1},{0,1,-1,1},{0,0,1,1}}; int C[][]=new int[3][4]; void printArray() { for(int i=0;i<3 data-blogger-escaped-br="" data-blogger-escaped-i=""> { for(int j=0;j<4 data-blogger-escaped-br="" data-blogger-escaped-j=""> System.out.print(C[i][j]+" "); System.out.println(); } } void Addition() { for(int i=0;i<3 data-blogger-escaped-br="" data-blogger-escaped-i=""> { for(int j=0;j<4 data-blogger-escaped-br="" data-blogger-escaped-j=""> C[i][j]=A[i][j]+B[i][j]; } } public static void main(String args[]) { RowSum m=new RowSum(); m.Addition(); System.out.println("\n Array elements after addition:"); m.printArray(); } }

class MetrixOperation { int A[][]={{1,0,0},{1,1,0},{0,1,1}}; int B[][]={{1,1,1},{0,1,0},{0,0,1}}; int C[][]=new int[3][3]; void printArrayA() { for(int i=0;i { for(int j=0;j System.out.print(A[i][j]+" "); System.out.println(); } } void printArrayB() { for(int i=0;i { for(int j=0;j System.out.print(B[i][j]+" "); System.out.println(); } } void printXORArray() { for(int i=0;i { for(int j=0;j System.out.print(C[i][j]+" "); System.out.println(); } } void XOROperation() { for(int i=0;i { for(int j=0;j { if(A[i][j]==B[i][j]) C[i][j]=0; else C[i][j]=1; } } } public static void main(String args[]) { MetrixOperation m=new MetrixOperation(); m.XOROperation(); System.out.println("\t"+"Metrix A :"); m.printArrayA(); System.out.println("*******************************"); System.out.println("\t...

class metrix { int m[][]={{1,2,13,4,5},{2,3,24,5,6},{3,4,35,6,7},{4,5,46,7,8}}; void printArray() { for(int i=0;i { for(int j=0;j System.out.print(m[i][j]+" "); System.out.println(); } } public static void main(String a[]) { metrix ab=new metrix(); ab.printArray(); } }

import java.util.*; public class ArrayOrder { public static void main(String args[]) { Scanner s=new Scanner(System.in); int a []={25,95,65,74,18}; int temp=0; int sum=0; double avg=0; double S=0; for(int i=0;i for(int j=0;j { if(a[j]>a[j+1]) { temp=a[j+1]; a[j+1]=a[j]; a[j]=temp; } } for(int b=0;b { sum=sum+a[b]; avg=sum/a.length; System.out.println(a[b]); S=S+Math.pow((a[b]-avg),2); } System.out.println("Meadian is: "+a[a.length/2]); System.out.println("minimum is: "+a[0]); System.out.println("Summation is: "+sum); System.out.println("Average is: "+avg); System.out.println("sd is:"+Math.sqrt(S/a.length-1)); } }

import java.util.*; public class Star7 { public static void main(String args[]) { for(int row=1;row { for(int s=row;s System.out.print(" "); for(int col=1;col System.out.print("*"); System.out.println(); } for(int r=1;r { for(int S=1;S System.out.print(" "); for(int c=9-2*r;c>=1;c--) System.out.print("*"); System.out.println(); } } }

import java.util.*; public class Star6 { public static void main(String args[]) { for(int row=1;row { for(int s=row;s System.out.print(" "); for(int col=1;col System.out.print("*"); { System.out.println(); } } } }

import java.util.*; public class Star5 { public static void main(String args[]) { for(int row=1;row { for(int s=1;s System.out.print(" "); for(int col=row;col System.out.print("*"); { System.out.println(); } } } }

import java.util.*; public class Star4 { public static void main(String args[]) { for(int row=1;row { for(int s=row;s System.out.print(" "); for(int col=1;col System.out.print("*"); { System.out.println(); } } } }

import java.util.*; public class Star3 { public static void main(String args[]) { for(int row=1;row { for(int col=1;col { System.out.print("*"); } System.out.println(); } } }

import java.util.*; public class Star2 { public static void main(String args[]) { for(int row=1;row { for(int col=row;col { System.out.print("*"); } System.out.println(); } } }

import java.awt.*; import java.awt.geom.*; import javax.swing.*; public class drawing2 extends JFrame { public drawing2() { super(" FAHIM"); setBackground(Color.blue); setSize(600,600); setVisible(true); } public void paint(Graphics g) { Graphics2D g2d=(Graphics2D)g; Color c1 = new Color(255,175,175); Color c2 = new Color(255,0,0); g2d.setPaint(new GradientPaint(5,30,c1,35,100,c2,true)); g2d.setStroke(new BasicStroke(4.0f)); g2d.fill(new Ellipse2D.Double(50,50,50,50)); Color c3 = new Color(0,0,255); Color c4 = new Color(255,0,0); g2d.setPaint(new GradientPaint(5,30,c3,35,100,c4,true)); g2d.setStroke(new BasicStroke(4.0f)); g2d.fill(new Ellipse2D.Double(75,75,100,75)); g2d.setPaint(Color.red); g2d.setStroke(new BasicStroke(6.0f)); g2d.draw(new Line2D.Double(10,75,50,60)); } public static void main(String args[]) { drawing2 d=new drawing2(); d.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }

import java.awt.*; import java.awt.geom.*; import javax.swing.*; public class drawing extends JFrame { public drawing() { super(" Graphics 2D Shapes"); setBackground(Color.blue); setSize(600,500); setVisible(true); } public void paint(Graphics g) { //super.paint(g); Graphics2D g2d=(Graphics2D)g; //------------------Line---------------------------------------------------// g2d.setPaint(Color.red); g2d.setStroke(new BasicStroke(6.0f)); g2d.draw(new Line2D.Double(100,150,500,300)); } public static void main(String args[]) { drawing d=new drawing(); d.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } }

class Cylynder { double radius; double height; void volume() { double vol=Math.PI*radius*radius*height; System.out.println("volume is: "+vol); } void CirfaceArea() { double A=(2*Math.PI*radius*radius+2*Math.PI*radius*height); System.out.println("Cirface Area is: "+A); } public static void main(String args[]) { Cylynder myCylynder=new Cylynder(); myCylynder.height=15; myCylynder.radius=7; myCylynder.volume(); myCylynder.CirfaceArea(); } }

import javax.swing.JOptionPane; public class Circle{ private double radius, diameter, circleArea, circumference; public static final String CN="Circle"; Circle(double radius){ this.radius=radius; computeDiameter(); computeCircumference(); } void computeDiameter(){ diameter=2*radius; } void computeCicleArea(){ circleArea=Math.PI*radius*radius; } void computeCircumference(){ circumference=2*Math.PI*radius; } public double getRadius(){ return radius; } public double getDiameter(){ return diameter; } public double getCircleArea(){ return circleArea; } public double getCircumference(){ return circumference; } public void setRadius(double newR){ radius= newR; computeDiameter(); computeCicleArea(); computeCircumference(); } public String toString(){ return "Circle's radius is "+radius+"\n Circumference is "+circumference + "\n Area is "+circleArea; } public static void main(String args[]){ Ci...

class Box1 { double width; double length; double height; double volume; public Box1(double w,double l,double h) { this.width=w; this.length=l; this.height=h; } void computeVolume() { volume=width*length*height; } public double getVolume() { return volume; } public static void main(String args[]) { Box1 mybox1=new Box1(10.0,20.0,15.0); Box1 mybox2=new Box1(10.0,20.0,10.0); mybox1.computeVolume(); mybox2.computeVolume(); System.out.println("volume is: "+mybox1.getVolume()); System.out.println("volume is: "+mybox2.getVolume()); } }

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public class HelloWorld { public static void main(String args[]) { System.out.println("HELLO FAHIM"); } }