GTU CSE

//File Name: GCDExample.java import java.util.*; public class GCDExample { public static void main(String args[]){ //Enter two number whose GCD needs to be calculated. Scanner scanner = new Scanner(System.in); System.out.println("Please enter first number to find GCD"); int number1 = scanner.nextInt(); System.out.println("Please enter second number to find GCD"); int number2 = scanner.nextInt(); System.out.println("GCD of two numbers " + number1 +" and " + number2 +" is :" + findGCD(number1,number2)); } /* * Java method to find GCD of two number using Euclid's method * @return GDC of two numbers in Java */ private static int findGCD(int number1, int number2) { //base case if(number2 == 0){ return number1; } return findGCD(number2, number1%number2...

// File Name: OneTimePad.java import java.util.*; class msg{ int a=97; char all[]=new char[27]; msg() { for(int i=0;i 26) ct[i]=ct[i]%26; } String cipher=""; for(int i=0;i OUTPUT Enter plaintext: onetimepadalogrihtmsneedlongkey Enter key: longkeyisrequiredforonetimepad Encrpted text is:zbrzsqcxsuebioimky jbriwt rvkhj Decrypted text is:onetimepadalogrihtmsneedlongkey

//File Name: PlayFairCipher.java import java.util.*; class Basic{ String allChar="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; boolean indexOfChar(char c) { for(int i=0;i 4) { b=0; a++; } } } char p='A'; while(a 4) r1=0; if(r2>4) r2=0; cipherChar+=keyMatrix[r1][c2]; cipherChar+=keyMatrix[r2][c1]; } else if(r1==r2) { ++c1; ++c2; if(c1>4) c1=0; if(c2>4) c2=0; cipherChar+=keyMatrix[r1][c1]; cipherChar+=keyMatrix[r2][c2]; } else{ cipherChar+=keyMatrix[r1][c2];...

// File Name: RailFence.java import java.util.*; class RailFenceBasic{ int depth; String Encryption(String plainText,int depth)throws Exception { int r=depth,len=plainText.length(); int c=len/depth; char mat[][]=new char[r][c]; int k=0; String cipherText=""; for(int i=0;i OUTPUT Enter plain text: railfencecipher Enter depth for Encryption: 3 Encrypted text is: rlnchafcieieepr Decrypted text is: railfencecipher

// File name:HillCipher.java import java.util.*; class Basic{ String allChar="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; int indexOfChar(char c) { for(int i=0;i OUTPUT Enter plain-text: meet Enter block size of matrix: 2 Enter key Matrix 3 1 5 2 Encrypted Text is: OQ FG Enter key Inverse Matrix: 2 -1 -5 3 Decrypted Text is: ME ET

//file name CeaserCipher.java import java.util.*; class basic{ String allChar="ABCDEFGHIJKLMNOPQRSTUVWXYZ"; int indexOfChar(char c) { for(int i=0;i =0) { decryptedText+=b.charAtIndex(index-key); } else { decryptedText+=b.charAtIndex((index-key)+26); } } return decryptedText; } void bruteForce(String cipherText) { cipherText=cipherText.toUpperCase(); for(int k=0;k =0) { decryptedText+=b.charAtIndex(index-key); } else { decryptedText+=b.charAtIndex((index-key)+26); } } System.out.println("Decrypted Text Using key"+key+":"+decryptedText); } } } class CeaserCipher{ public static void main(String args[])throws Exception { Scanner scn=new Scanner(System.in); String plainText,cipherText; int key; System.out.println("Enter Plaintext message:"); plainText=scn.nextLine(); System.out.println("Enter key for Encry...

#include #include #include #define MAX 20 enum { TOP = 0x1, BOTTOM = 0x2, RIGHT = 0x4, LEFT = 0x8 }; enum { FALSE, TRUE }; typedef unsigned int outcode; outcode compute_outcode(int x, int y,int xmin, int ymin, int xmax, int ymax) { outcode oc = 0; if (y > ymax) oc |= TOP; else if (y xmax) oc |= RIGHT; else if (x OUTPUT

#include #include #include void floodFill4(int,int,int,int); void floodFill8(int,int,int,int); void main() { int gd=DETECT,gm; int b=0; initgraph(&gd,&gm,""); setbkcolor(b); setcolor(BLUE); outtextxy(5,5,"Flood Filling algorithm using 4-connected and 8-connected"); line(100,100,50,100); setcolor(RED); line(100,100,100,150); setcolor(BLUE); line(100,150,50,150); setcolor(GREEN); line(50,100,50,150); floodFill8(53,102,14,b); setcolor(GREEN); circle(200,200,30); setcolor(RED); circle(200,200,50); floodFill4(200,240,5,b); getch(); } void floodFill4(int x,int y,int fill,int old) { int current; current=getpixel(x,y); //delay(100); if(current==old) { putpixel(x,y,fill); floodFill4(x+1,y,fill,old); floodFill4(x-1,y,fill,old); floodFill4(x,y-1,fill,old); floodFill4(x,y+1,fill,old); } } void floodFill8(int x,int y,int fill,int old) { int current; current=getpixel(x,y); if(current==old) { putpixel(x,y,fill); floodF...

#include #include #include void BoundaryFill4(int,int,int,int); void BoundaryFill8(int,int,int,int); void main() { int gd=DETECT,gm; initgraph(&gd,&gm,""); setbkcolor(15); setcolor(BLUE); outtextxy(0,0,"Boundary Filling algorithm using 4-connected and 8-connected"); rectangle(50,50,100,100); circle(50,50,30); BoundaryFill8(56,56,5,BLUE); BoundaryFill4(40,40,14,BLUE); getch(); } void BoundaryFill4(int x,int y,int fill,int boundary) { int current; current=getpixel(x,y); if((current!=boundary) && (current!=fill)) { putpixel(x,y,fill); BoundaryFill4(x+1,y,fill,boundary); BoundaryFill4(x-1,y,fill,boundary); BoundaryFill4(x,y-1,fill,boundary); BoundaryFill4(x,y+1,fill,boundary); } } void BoundaryFill8(int x,int y,int fill,int boundary) { int current; current=getpixel(x,y); if((current!=boundary) && (current!=fill)) { putpixel(x,y,fill); BoundaryFill8(x+1,y,fill,boundary); BoundaryFill8(x-1,y,fill,boundary);...

#include #include #include #include void translate(int,int); void scale(int,int); void rotate(float); void main() { int ch; int gd=DETECT,gm; int tx,ty,sx,sy; float theta; initgraph(&gd,&gm,"c:\\tc\\bgi"); setbkcolor(WHITE); setcolor(6); outtextxy (100,88,"Object."); rectangle(100,250,150,200); printf("---MENU---"); printf("\n 1)Translate\n 2)Scale\n 3)Rotate"); printf("\nEnter your choice: "); scanf("%d",&ch); cleardevice(); switch(ch) { case 1: outtextxy(10,45,"Enter value of tx and ty:"); scanf("%d %d",&tx,&ty); translate(tx,ty); break; case 2: outtextxy(10,45,"Enter the value of sx and sy:"); scanf("%d%d",&sx,&sy); scale(sx,sy); break; case 3: outtextxy(10,50,"Enter the angle for rotation: "); scanf("%f",&theta); rotate(theta); break; default: printf(...

#include #include #include #define ROUND(a) ((int)(a+0.5)) void ellipseMidPoint(int xCen,int yCen,int Rx,int Ry); void ellipsePlot(int,int,int,int); void main() { int x,y,rx,ry,gdriver=DETECT,gmode; clrscr(); initgraph(&gdriver,&gmode,""); setbkcolor(YELLOW); printf("\nEnter point(x,y):"); scanf("%d %d",&x,&y); printf("\nEnter radius(rx,ry):"); scanf("%d %d",&rx,&ry); ellipseMidPoint(x,y,rx,ry); getch(); } void ellipseMidPoint(int xCen,int yCen,int Rx,int Ry) { int Rx2=Rx*Rx; int Ry2=Ry*Ry; int twoRx2=2*Rx2; int twoRy2=2*Ry2; int x=0; int y=Ry; int px=0; int py=twoRx2*y; float p; ellipsePlot(xCen,yCen,x,y); p=Ry2-(Rx2*Ry)+ROUND(0.25*Rx2); while(px 0) { y--; py-=twoRx2; if(p > 0) p+=Rx2-py; else { x++; px+=twoRy2; p+=Rx2-py+px; } ellipsePlot(xCen,yCen,x,y); } } void ellipsePlot(int xCen,int yCen,int x,int y) { putpixel(xCen+x,yCen+y,BLUE); putpix...

#include #include #include void BRESENHAM_CIRCLE(int x,int y,int r); void circlePlot(int,int,int,int); void main() { int x,y,r,gdriver=DETECT,gmode; clrscr(); initgraph(&gdriver,&gmode,""); printf("\nEnter point(x,y):"); scanf("%d %d",&x,&y); printf("\nEnter radius:"); scanf("%d",&r); BRESENHAM_CIRCLE(x,y,r); getch(); } void BRESENHAM_CIRCLE(int xCen,int yCen,int r) { int x=0; int y=r; int s=3-2*r; circlePlot(xCen,yCen,x,y); while(x OUTPUT

#include #include #include void MID_POINT_CIRCLE(int x,int y,int r); void circlePlot(int,int,int,int); void main() { int x,y,r,gdriver=DETECT,gmode; clrscr(); initgraph(&gdriver,&gmode,""); printf("\nEnter point(x,y):"); scanf("%d %d",&x,&y); printf("\nEnter radius:"); scanf("%d",&r); MID_POINT_CIRCLE(x,y,r); getch(); } void MID_POINT_CIRCLE(int xCen,int yCen,int r) { int x=0; int y=r; int p=1-r; circlePlot(xCen,yCen,x,y); while(x OUTPUT

#include< stdio.h> #include< graphics.h> #include< conio.h> void BRESENHAM_LINE(int x1,int y1,int x2,int y2); void main() { int x1,y1,x2,y2,gdriver=DETECT,gmode; clrscr(); initgraph(&gdriver,&gmode,""); printf("\nEnter point1(x1,y1):"); scanf("%d %d",&x1,&y1); printf("\nEnter point2(x2,y2):"); scanf("%d %d",&x2,&y2); BRESENHAM_LINE(x1,y1,x2,y2); getch(); } void BRESENHAM_LINE(int x1,int y1,int x2,int y2) { int dx=abs(x1-x2),dy=abs(y1-y2); int p=2*dy-dx; int twoDy=2*dy,twoDyDx=2*(dy-dx); int x,y,xEnd; if(x1>x2) { x=x2; y=y2; xEnd=x1; } else { x=x1; y=y1; xEnd=x2; } putpixel(x,y,WHITE); while(x < xEnd) { x++; if(p < 0) p+=twoDy; else { y++; p+=twoDyDx; } putpixel(x,y,WHITE); } } OUTPUT

#include< stdio.h> #include< graphics.h> #include< conio.h> #define ROUND(a) ((int)(a+0.5)) void DDA_LINE(int x1,int y1,int x2,int y2); void main() { int x1,y1,x2,y2,gdriver=DETECT,gmode; clrscr(); initgraph(&gdriver,&gmode,""); printf("\nEnter point1(x1,y1):"); scanf("%d %d",&x1,&y1); printf("\nEnter point2(x2,y2):"); scanf("%d %d",&x2,&y2); DDA_LINE(x1,y1,x2,y2); getch(); } void DDA_LINE(int x1,int y1,int x2,int y2) { int dx=x2-x1,dy=y2-y1,steps,i; float xInc,yInc,x=x1,y=y1; if(abs(dx)>abs(dy)) steps=abs(dx); else steps=abs(dy); xInc=dx/(float)steps; yInc=dy/(float)steps; putpixel(ROUND(x),ROUND(y),BLACK); for(i=0;i< steps;i++) { x+=xInc; y+=yInc; putpixel(ROUND(x),ROUND(y),BLACK); } } Output of Program

Here you can find all the previous GTU examination papers for reference. you can download the papers.

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Computer Graphics Computer Graphics C Version, D.Hearn And P.Baker Information Security Cryptography And Network Principles And Practice,5th Edition Cryptography And Network Principles And Practice,4th Edition Cryptography & Network Security, Forouzan, Mukhopadhyay Operating System Design The Design of the Unix Operating System by Maurice J. Bach Software Engineering Pressman R.S., Software Engineering : A Practitioner's Approach Software Engineering, Pankaj Jalote, – A Precise Approach Software Engineering, Rajiv Mall(notes) Theory of Computation Introduction To Languages And Theory Of Computation By John C. Martin Web Application Development Internet and World Wide Web How to program * i have not uploaded any books , i got the link from internet , i am not responsible for any kind of copyright materials.