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

public class shape extend Applet implements itemListener
{
	Chekbox reet,circle,line;
	ChekboxGroup cbg;

	String msg;
	String s1="reet";
	String s2="circle";
	string s3="line";
	publice void init()
	{
		cbg=new checkboxGroup();

		rect = new checkbox("reet,cbg,tru);
		circle = new Checkbox("circle",cbg.false);
		line = new Checkbox("line",cbg,false);

		add(reet);
		add(circle);
		add(line);

		rect.addItemListener(this);
		circle.addItemLisener(this);
		line.addItemListener(this);	
	}
	public void item StateChanged(ItemEvent ie)
	{
		repaint();
	}
	publice void paint(Graphics g)
	{
		msg=cbg.getSlectedCheckbox().getLabel();
		if(masg.compareTo(s1)==0)
		{
			g.drawRect(10,40,40,80);
		}
		else if(msg.compareTo(s2)==0)
		{
			g.drawOvel(10,40,80,80);
		}
		else
		{
			g.drawLine(0,0,100,100);
		}
	}
}

The post Java program to implement a shape selector from a given set of shapes first appeared on Student Projects.

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

public class fillcolor extends Applet implement Item Listener
{
	checkbox red,yellow,black,blue.orange;
	CheckboxGroup cbg;
	String msg;
	String s1="red";
	String s2="yellow";
	String s3="black";
	String s4="orange";
	public void init()
	{
		cbg = new CheckboxGroup();
		red = new Chechbox("red",cbg,true);
		yellow= new Checkbox("yellow",cbg,false);
		black = new checkbox("black",cbg,false);
		blue = new Checkbox("blue",cbg,false);
		orange = new checkbox("orange".cbg.false);
		add(red);
		add(yellow);
		add(black);
		add(blue);
		add(orange);
		red.addItemListener(this);
		yellow.addItemListener(this);
		black.addItemListener(this);
		blue.addItemListener(this);
		orange.addItemListener(this);
	}
	publice void itemStartechanged(ItemEvent ie)
	{
		repaint();
	}
	publice void paint (Graphics g)
	{
		msg = cbg.getSelectedCheckbox().getLabel();
		if(msg.compareTo(s1)==0)
		{	
		    setBackground(Color.red);
		}
		else if (msg.compareTo(s2)==0)
		{
		    setBackground(Color.yellow);
		}
		else if(msg.compare To(s3)==0)
		{
		    setBackground(color.black);
		}
		else if (msg.compareTo(s4)==o)
		{
		    setBackground(Color.blue);
		}
		else
		{
		    set Background(Color.orange);
		}
	}
}

The post Java program to implement a Color Section from a given set of Color. first appeared on Student Projects.

Output:

The post Java applet program that allows the user to draw lines, rectangles and ovals first appeared on Student Projects.

Output:

The post Java applet program for handling Keyboard events first appeared on Student Projects.

Output:

The post Java applet program for handling mouse events first appeared on Student Projects.

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

/* 


*/

public class Cal extends Applet
implements ActionListener
{
	String msg=" ";
	int v1,v2,result;
	TextField t1;
	Button b[]=new Button[10];
	Button add,sub,mul,div,clear,mod,EQ;
	char OP;
	public void init()
	{
		Color k=new Color(120,89,90);
		setBackground(k);
		t1=new TextField(10);
		GridLayout gl=new GridLayout(4,5);
		setLayout(gl);
		for(int i=0;i<10;i++)
		{
			b[i]=new Button(""+i);
		}
		add=new Button("add");
		sub=new Button("sub");
		mul=new Button("mul");
		div=new Button("div");
		mod=new Button("mod");
		clear=new Button("clear");
		EQ=new Button("EQ");
		t1.addActionListener(this);
		add(t1);
		for(int i=0;i<10;i++)
		{
			add(b[i]);
		}
		add(add);
		add(sub);
		add(mul);
		add(div);
		add(mod);
		add(clear);
		add(EQ);
		for(int i=0;i<10;i++)
		{
			b[i].addActionListener(this);
		}
		add.addActionListener(this);
		sub.addActionListener(this);
		mul.addActionListener(this);
		div.addActionListener(this);
		mod.addActionListener(this);
		clear.addActionListener(this);
		EQ.addActionListener(this);
	}

	public void actionPerformed(ActionEvent ae)
	{
		String str=ae.getActionCommand();
		char ch=str.charAt(0);
		if ( Character.isDigit(ch))
		t1.setText(t1.getText()+str);
		else
		if(str.equals("add"))
		{
			v1=Integer.parseInt(t1.getText());
			OP='+';
			t1.setText("");
		}
		else if(str.equals("sub"))
		{
			v1=Integer.parseInt(t1.getText());
			OP='-';
			t1.setText("");
		}
		else if(str.equals("mul"))
		{
			v1=Integer.parseInt(t1.getText());
			OP='*';
			t1.setText("");
		}
		else if(str.equals("div"))
		{
			v1=Integer.parseInt(t1.getText());
			OP='/';
			t1.setText("");
		}
		else if(str.equals("mod"))
		{
			v1=Integer.parseInt(t1.getText());
			OP='%';
			t1.setText("");
		}
		if(str.equals("EQ"))
		{
			v2=Integer.parseInt(t1.getText());
			if(OP=='+')
				result=v1+v2;
			else if(OP=='-')
				result=v1-v2;
			else if(OP=='*')
				result=v1*v2;
			else if(OP=='/')
				result=v1/v2;
			else if(OP=='%')
				result=v1%v2;
			t1.setText(""+result);
		}	
		if(str.equals("clear"))
		{
			t1.setText("");
		}
	}
}

Output:

The post Java applet program for calculator first appeared on Student Projects.

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
/*


*/
public class Loan extends Applet
implements ActionListener,ItemListener
{
	double p,r,n,total,i;
	String param1;
	boolean month;
	Label l1,l2,l3,l4;
	TextField t1,t2,t3,t4;
	Button b1,b2;
	CheckboxGroup cbg;
	Checkbox c1,c2;
	String str;
	public void init()
	{
		l1=new Label("Balance Amount",Label.LEFT);
		l2=new Label("Number of Months",Label.LEFT);
		l3=new Label("Interest Rate",Label.LEFT);
		l4=new Label("Total Payment",Label.LEFT);
		t1=new TextField(5);
		t2=new TextField(5);
		t3=new TextField(15);
		t4=new TextField(20);
		b1=new Button("OK");
		b2=new Button("Delete");
		cbg=new CheckboxGroup();
		c1=new Checkbox("Month Rate",cbg,true);
		c2=new Checkbox("Annual Rate",cbg,true);
		t1.addActionListener(this);
		t2.addActionListener(this);
		t3.addActionListener(this);
		t4.addActionListener(this);
		b1.addActionListener(this);
		b2.addActionListener(this);
		c1.addItemListener(this);
		c2.addItemListener(this);
		add(l1);
		add(t1);
		add(l2);
		add(t2);
		add(l3);
		add(t3);
		add(l4);
		add(t4);
		add(c1);
		add(c2);
		add(b1);
		add(b2);
	}
	public void itemStateChanged(ItemEvent ie)
	{
	}
	public void actionPerformed(ActionEvent ae)
	{
		str=ae.getActionCommand();
		if(str.equals("OK"))
		{
			p=Double.parseDouble(t1.getText());
			n=Double.parseDouble(t2.getText());
			r=Double.parseDouble(t3.getText());
			if(c2.getState())
			{
				n=n/12;
			}
			i=(p*n*r)/100;
			total=p+i;
			t4.setText(" "+total);
		}
		else if(str.equals("Delete"))
		{
			t1.setText(" ");
			t2.setText(" ");
			t3.setText(" ");
			t4.setText(" ");
		}
	}
}

Output:

The post Java applet program for interest rate calculation first appeared on Student Projects.

Output:

The post Java applet program that displays a simple message first appeared on Student Projects.