How do I make a sigma rotate in a sigma form in java..i have tried my best pls correct me

using java 2d graphics one is supposed to draw a spinning letter E that moves from the right bottom-most corner to the right topmost corner before starting to write the Letter 
  Σ  

import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.AffineTransform;

import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.Timer;

public class fanta{
  public static void main(String[] args) {
    JFrame jf = new JFrame("CS303");
    
    Container cp = jf.getContentPane();
   
    JavaAnimation tl = new JavaAnimation();
    cp.add(tl);
    jf.setSize(950, 850);
    jf.setVisible(true);
  }
}

class JavaAnimation extends JPanel implements ActionListener {
	Timer t = new Timer(5, this);
	//vitesse
	int x = 450, y = 650, velX = 5,velY=5;
	int x2=850,y2=250, velX2 = 5;
	boolean line1=false,line2=false,line3=false,line4=false,line5=false,isDone=false;
	int rotation_value=0;
	String val="Σ";
	public static void drawRotate(Graphics2D g2d, double x, double y, int angle, String text) 
	{    
		
	    g2d.translate((float)x,(float)y);
	    g2d.rotate(Math.toRadians(angle));
	    g2d.drawString(text,0,0);
	    g2d.rotate(-Math.toRadians(angle));
	    g2d.translate(-(float)x,-(float)y);
	}    
  public void paintComponent(Graphics g) {
	  
	  super.paintComponent(g);
      if(g instanceof Graphics2D)
      {
       Graphics2D g2 = (Graphics2D)g;
       Font font = new Font("Times New Roman", Font.PLAIN, 100); 
       g2.setFont(font);
       //g2.setColor(new Color(0,0,255));
       //Background
       g2.setColor(new Color(0,255,0));
       g.fillRect(0, 0,  this.getWidth(), this.getHeight());
       //letter
       g2.setColor(new Color(0,0,255));
       drawRotate(g2, x, y, rotation_value, "");
        t.start();
        if(isDone==true) {
    		t.stop();
    	}
       }
   }

public void actionPerformed(ActionEvent e) {
	// TODO Auto-generated method stub
	
	if(y> 100&&line1==false&&line2==false) {
		y-=velY;
	}

	if(y==100&&x<=850&&line1==false&&line2==false) {
		x += velX;
		
		if(x==850) {
			
			line1=true;
		}
	}
	else if(y==100&&line1==true&&line2==false) {
		x -= velX;
		if(x==450) {
			line2=true;
			line1=false;
		}
	}
	if(line2==true&&y<350&&line3==false) {
		y+=velY;
		if(y==350) {
			line3=true;
		}
	}
	if(y==350&&x<=850&&line3==true&&line4==false) {
		x+=velX;
		if(x==850) {
			line3=false;
			line4=true;
		}
	} else if(y==350&&x>450&&line3==false&&line4==true) {
		x-=velX;
		if(x==450) {
			line5=true;
		}
	}
	if(y<650&&line5==true) {
		y+=velY;
		if(y==650) {
			isDone=true;
		}
	}
	
	
	if(rotation_value<360) {
		rotation_value+=5;
	}
	else
	rotation_value=0;
	
	repaint();
}
}