Lotto ziehung(java-quelltext)

import java.awt.event.*; import java.awt.*;

class Lotto extends Frame implements ActionListener
{


TextField t1,t2,t3,t4,t5,t6;
Button b1;

Label l1;
int[] lottozahl;

int eins,zwei,drei,vier,fuenf,sechs;
int hilfe=0;



Lotto()
{

setTitle(\"Lotto - Ziehung\");
setSize(300,300);

setLayout(new FlowLayout());
setBackground(Color.blue);

addWindowListener(new WindowAdapter()

{
public void windowClosing(WindowEvent e)

{
System.exit(0);

dispose();}});

l1 = new Label(\"Hier ist die Ziehung der 6 Lottozahlen!\",Font.BOLD);
add(l1);

t1 = new TextField(\"\",20);

add(t1);


t2 = new TextField(\"\",20);
add(t2);

t3 = new TextField(\"\",20);

add(t3);


t4 = new TextField(\"\",20);
add(t4);

t5 = new TextField(\"\",20);

add(t5);


t6 = new TextField(\"\",20);
add(t6);

b1 = new Button(\" Ziehung für heute \");

b1.addActionListener(this);
add(b1);



setVisible(true);


}

public void actionPerformed(ActionEvent e)
{
if(e.getSource() == b1) { ziehung();}

}

void ziehung()
{
lottozahl = new int[6];

int schalter;


do{
schalter = 0;

for(int i=0;i=0;j--)

{
if (lottozahl[i] == lottozahl[j]) schalter = 1;
}
} for(int i=0;i