Java Problems (Really Need Help!)
I keep getting errors in java and I don't know what to do. Everything looks fine. Could someone please help? Here's the applet I'm working on and below it are the error messages.
/**
* File: PetRockApplet.java
* Author: Jacob Harris (regular bonus, trying for honors, and
1 honors bonus)
* Programming: 1st Hour
* Last Modified: January 26, 2014
* Description: This applet creates, draws, finds the area, flips, and
* changes the color of pet rocks (oval & 2 rectangles
* with names).
*/
import java.awt.*; // get the java "standard graphic" classes
import java.applet.Applet; // get the java "standard applet" classes
import java.awt.event.*; // get the java "standard event" classes
public class PetRockApplet extends Applet implements ActionListener
{
private int majorAxis; // length of oval rock
private int minorAxis; // width of oval rock
private int length1; // length of rectangular rock 1
private int width1; // width of rectangular rock 1
private int length2; // length of rectangular rock 2
private int width2; // width of rectangular rock 2
private String name1; // name of rock 1
private String name2; // name of rock 2
private String name3; // name of rock 3
private Button flipButton1; // declare flipButton1 (don't fill)
private Button flipButton2; // declare flipButton2 (don't fill)
private Button flipButton3; // declare flipButton3 (don't fill)
private Button colorButton1; // declare colorButton1 (don't fill)
private Button colorButton2; // declare colorButton2 (don't fill)
private Button colorButton3; // declare colorButton3 (don't fill)
private Color color1; // declare color 1 (red)
private Color color2; // declare color 2 (blue)
private Color color3; // declare color 3 (green)
private Color color4; // declare color 4 (yellow)
private Color color5; // declare color 5 (pink)
private Color color6; // declare color 6 (black)
/**
* The init() method initializes/starts/creates the rocks
*/
public void init()
{
// declare an empty PetRockApplet class called "myPetRock1"
PetRockApplet myPetRock1;
// make (instantiate) the new PetRock1
myPetRock1 = new petRockApplet1();
flipButton1 = new Button("Flip"); // make flipButton1
add(flipButton1); // draw flipButton1
flipButton1.addActionListener(this); // listen for mouse
colorButton1 = new Button("Change Color"); // make colorButton1
add(colorButton1); // draw colorButton1
colorButton1.addActionListener(this); // listen for mouse
// declare an empty PetRockApplet class called "myPetRock2"
PetRockApplet myPetRock2;
// make (instantiate) the new PetRock2
myPetRock2 = new petRockApplet2();
flipButton2 = new Button("Flip"); // make flipButton2
add(flipButton2); // draw flipButton2
flipButton2.addActionListener(this); // listen for mouse
colorButton2 = new Button("Change Color"); // make colorButton2
add(colorButton2); // draw colorButton2
colorButton2.addActionListener(this); // listen for mouse
// declare an empty PetRockApplet class called "myPetRock3"
PetRockApplet myPetRock3;
// make (instantiate) the new PetRock3
myPetRock3 = new petRockApplet3();
flipButton3 = new Button("Flip"); // make flipButton3
add(flipButton3); // draw flipButton3
flipButton3.addActionListener(this); // listen for mouse
colorButton3 = new Button("Change Color"); // make colorButton3
add(colorButton3); // draw colorButton3
colorButton3.addActionListener(this); // listen for mouse
paint1(); // draw rock 1
paint2(); // draw rock 2
paint3(); // draw rock 3
} // end of init() method
/**
* The petRockApplet1() method constructs pet rock 1 with a given
* major axis, minor axis, and name. It also defines colors 1 & 2.
*/
public void petRockApplet1()
{
name1 = "Jacob Harris' Pet Rock 1";
majorAxis = 30;
minorAxis = 70;
color1 = Color.red;
color2 = Color.blue;
} // end of petRockApplet1() method
/**
* The petRockApplet2() method constructs pet rock 2 with a given
* length, width, and name. It also defines colors 3 & 4.
*/
public void petRockApplet2()
{
name2 = "Jacob Harris' Pet Rock 2";
length1 = 30;
width1 = 70;
color3 = Color.green;
color4 = Color.yellow;
} // end of petRockApplet2() method
/**
* The petRockApplet3() method constructs pet rock 3 with a given
* length, width, and name. It also defines colors 5 & 6.
*/
public void petRockApplet3()
{
name3 = "Jacob Harris' Pet Rock 3";
length2 = 30;
width2 = 70;
color5 = Color.pink;
color6 = Color.black;
} // end of petRockApplet3() method
/**
* The calculateArea1() method calculates and returns the area of the
* (oval) rock.
*/
public double calculateArea1()
{
double area;
return area = (majorAxis/2) * (minorAxis/2) * 3.14;
} // end of calculateArea1() method
/**
* The calculateArea2() method calculates and returns the area of the
* (rectangular) rock.
*/
public double calculateArea2()
{
double area;
return area = length1 * width1;
} // end of calculateArea2() method
/**
* The calculateArea3() method calculates and returns the area of the
* (2nd rectangular) rock.
*/
public double calculateArea3()
{
double area;
return area = length2 * width2;
} // end of calculateArea3() method
/**
* The flip1() method switches the major axis and minor axis of rock 1
* then redraws the picture.
*/
public void flip1()
{
int temp1; // need int temp1 only in this method
temp1 = minorAxis;
minorAxis = majorAxis;
majorAxis = temp1;
} // end of flip1() method
/**
* The flip2() method switches the length and width of rock 2 then
* redraws the picture.
*/
public void flip2()
{
int temp2; // need int temp2 only in this method
temp2 = length1;
length1 = width1;
width1 = temp2;
} // end of flip2() method
/**
* The flip3() method switches the length and width of rock 3 then
* redraws the picture.
*/
public void flip3()
{
int temp3; // need int temp3 only in this method
temp3 = length2;
length2 = width2;
width2 = temp3;
} // end of flip3() method
/**
* The changeColor1() method switches the color of rock 1 then redraws
* the picture.
*/
public void changeColor1()
{
Color temp1; // need Color temp1 only in this method
temp1 = color1;
color1 = color2;
color2 = temp1;
} // end of changeColor1() method
/**
* The changeColor2() method switches the color of rock 2 then redraws
* the picture.
*/
public void changeColor2()
{
Color temp2; // need Color temp2 only in this method
temp2 = color3;
color3 = color4;
color4 = temp2;
} // end of changeColor2() method
/**
* The changeColor3() method switches the color of rock 3 then redraws
* the picture.
*/
public void changeColor3()
{
Color temp3; // need Color temp3 only in this method
temp3 = color5;
color5 = color6;
color6 = temp3;
} // end of changeColor3() method
/**
* The paint1() method draws rock 1 (oval) as well as the name of the
* rock then computes and prints the area of the rock using the
* calculateArea1() method.
*/
public void paint1(Graphics g) // create predefined graphics object
{
// draws name1 at 50 over and 70 down
g.drawString(name1,50,70);
// sets the rock's color to red
g.setColor(color1);
// draws the oval Rock
g.fillOval(100,160,minorAxis,majorAxis);
// draws the major axis
g.drawString("The major axis: "+majorAxis,50,85);
// draws the minor axis
g.drawString("The minor axis: "+minorAxis,50,100);
// draws the area
g.drawString("The area: "+calculateArea1(),50,115);
} // end of paint1() method
/**
* The paint2() method draws rock 2 (rectangle) as well as the name of
* the rock then computes and prints the area of the rock using the
* calculateArea2() method.
*/
public void paint2(Graphics g) // create predefined graphics object
{
// draws name2 at 70 over and 70 down
g.drawString(name2,70,70);
// sets the rock's color to green
g.setColor(color3);
// draws the rectangular rock
g.fillRect(120,160,length1,width1);
// draws the length
g.drawString("The length: "+length1,70,85);
// draws the width
g.drawString("The width: "+width1,70,100);
// draws the area
g.drawString("The area: "+calculateArea2(),70,115);
} // end of paint2() method
/**
* The paint3() method draws rock 3 (2nd rectangle) as well as the name
* of the rock then computes and prints the area of the rock using the
* calculateArea3() method.
*/
public void paint3(Graphics g) // create predefined graphics object
{
// draws name3 at 90 over and 70 down
g.drawString(name3,90,70);
// sets the rock's color to pink
g.setColor(color5);
// draws the rectangular rock
g.fillRect(140,160,length2,width2);
// draws the length
g.drawString("The length: "+length2,90,85);
// draws the width
g.drawString("The width: "+width2,90,100);
// draws the area
g.drawString("The area: "+calculateArea3(),90,115);
} // end of paint3() method
/**
* The actionPerformed() method is automatically called whenever a
* flip button or color button is clicked.
*/
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == flipButton1) // see if flipButton1 clicked
{
flip1(); // flip major & minor axes
}
if (e.getSource() == colorButton1) // see if colorButton1 clicked
{
changeColor1(); // change the color
}
if (e.getSource() == flipButton2) // see if flipButton2 clicked
{
flip2(); // flip length1 and width1
}
if (e.getSource() == colorButton2) // see if colorButton2 clicked
{
changeColor2(); // change the color
}
if (e.getSource() == flipButton3) // see if flipButton3 clicked
{
flip3(); // flip length2 and width2
}
if (e.getSource() == colorButton3) // see if colorButton3 clicked
{
changeColor3(); // change the color
}
paint1(); // redraw rock 1
paint2(); // redraw rock 2
paint3(); // redraw rock 3
} // end of actionPerformed() method
} // end of petRockApplet
F:\PetRockApplet.java:50: error: cannot find symbol
myPetRock1 = new petRockApplet1();
^
symbol: class petRockApplet1
location: class PetRockApplet
F:\PetRockApplet.java:63: error: cannot find symbol
myPetRock2 = new petRockApplet2();
^
symbol: class petRockApplet2
location: class PetRockApplet
F:\PetRockApplet.java:76: error: cannot find symbol
myPetRock3 = new petRockApplet3();
^
symbol: class petRockApplet3
location: class PetRockApplet
F:\PetRockApplet.java:84: error: method paint1 in class PetRockApplet cannot be applied to given types;
paint1(); // draw rock 1
^
required: Graphics
found: no arguments
reason: actual and formal argument lists differ in length
F:\PetRockApplet.java:85: error: method paint2 in class PetRockApplet cannot be applied to given types;
paint2(); // draw rock 2
^
required: Graphics
found: no arguments
reason: actual and formal argument lists differ in length
F:\PetRockApplet.java:86: error: method paint3 in class PetRockApplet cannot be applied to given types;
paint3(); // draw rock 3
^
required: Graphics
found: no arguments
reason: actual and formal argument lists differ in length
F:\PetRockApplet.java:339: error: method paint1 in class PetRockApplet cannot be applied to given types;
paint1(); // redraw rock 1
^
required: Graphics
found: no arguments
reason: actual and formal argument lists differ in length
F:\PetRockApplet.java:340: error: method paint2 in class PetRockApplet cannot be applied to given types;
paint2(); // redraw rock 2
^
required: Graphics
found: no arguments
reason: actual and formal argument lists differ in length
F:\PetRockApplet.java:341: error: method paint3 in class PetRockApplet cannot be applied to given types;
paint3(); // redraw rock 3
^
required: Graphics
found: no arguments
reason: actual and formal argument lists differ in length
9 errors
Tool completed with exit code 1