import java.applet. - oth

/* Aufgabe1.java */
import java.awt.*;
import java.applet.*;
/*
* @author Prof. Juergen Sauer
*/
public class Aufgabe1
extends Applet
{
static final int N = 8;
static final int GROESSE = 40;
static int x_offset, y_offset;
static int qx[] = { 4, 8, 32, 36, 31, 28, 24, 20, 16, 12, 9, 4, };
static int qy[] = { 19, 34, 34, 19, 24, 13, 22, 4, 22, 13, 24, 19,
};
static int qxx[] = { 8, 17, 20, 23, 32, };
static int qyy[] = { 31, 31, 27, 31, 31, };
Dimension d;
public void init()
{
d = getSize();
}
public void paint(Graphics g)
{
holOffsets();
zeichneBrett(g);
zeichneAlleDamen(g);
}
void holOffsets()
{
x_offset = (d.width - (N * GROESSE)) / 2;
y_offset = (d.height- (N * GROESSE)) / 2 - 10;
}
void zeichneBrett(Graphics g)
{
g.setColor( Color.lightGray );
g.fillRect( 0, 0, d.width, d.height );
g.setColor( Color.lightGray );
g.draw3DRect( x_offset-2, y_offset-2, N*GROESSE+3, N*GROESSE+3,
true );
g.draw3DRect( x_offset-3, y_offset-3, N*GROESSE+5, N*GROESSE+5,
true );
g.draw3DRect( x_offset-4, y_offset-4, N*GROESSE+7, N*GROESSE+7,
true );
for( int j=0; j < N; j++ )
{
for( int i=0; i < N; i++ )
{
if ((i + j) % 2 == 1)
g.setColor(Color.red);
else
g.setColor(Color.lightGray);
g.fillRect( x_offset + i*GROESSE, y_offset +
j*GROESSE, GROESSE, GROESSE );
}
}
}
void zeichneAlleDamen(Graphics g)
{
for( int i = 0; i < N; i++ )
{
zeichneEineDame(g, x_offset+GROESSE*i,
y_offset+GROESSE*(N - i - 1) );
}
}
void zeichneEineDame(Graphics g, int x, int y)
{
g.translate( x, y );
g.setColor( Color.white );
g.fillPolygon( qx, qy, qx.length );
g.setColor( Color.black );
g.drawPolygon( qx, qy, qx.length );
g.drawPolygon( qxx, qyy, qxx.length );
g.translate( -x, -y );
}
}
/* Aufgabe2.java */
/*
* @author Benjamin Kormann
*/
class InitVal
{
boolean a;
byte b;
char c;
double d;
float e;
int f;
long g;
short h;
public InitVal()
{
System.out.println("type\tinit");
System.out.println("-------------");
System.out.println("boolean\t" + a);
System.out.println("byte\t" + b);
System.out.println("char\t" + c);
System.out.println("double\t" + d);
System.out.println("float\t" + e);
System.out.println("int\t" + f);
System.out.println("long\t" + g);
System.out.println("short\t" + h);
}
}
public class Aufgabe2
{
public static void main(String args[])
{
new InitVal();
}
}
/* Aufgabe4.java */
/*
* @author Prof. Juergen Sauer
*/
class Primzahlen
{
private int start;
public int zaehler = 100;
// Konstruktor mit einem Argument
public Primzahlen(int sta)
{
start = sta;
}
private boolean istPrimzahl(int p)
{
for (int i = 2; i < (p / 2); i++)
{
if ( (i * (p / i)) == p)
return false;
}
return true;
}
public void erzeuge(int feld[])
{
int sta = start;
int z = zaehler;
int idx = 0;
while (z > 0)
{
if (istPrimzahl(sta))
{
feld[idx++] = sta;
z--;
}
if (sta == 2)
sta++;
else
sta = sta + 2;
}
}
}
public class Aufgabe4
{
public static void main(String args[])
{
Primzahlen p;
int feldP[];
int laenge;
int sta = 2;
int zaehler = 0;
laenge = args.length;
p = new Primzahlen(sta);
if (laenge > 0)
{
zaehler = Integer.parseInt(args[0]);
p.zaehler = zaehler;
}
feldP = new int[p.zaehler];
p.erzeuge(feldP);
for (int i = 0; i < p.zaehler; i++)
{
System.out.print(feldP[i] + " ");
if (i == 0)
continue;
if ((i % 12) == 0)
{
System.out.println();
}
}
}
}