5 errors, who can help me?

How to solve this..

Compiling...
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1. ERROR in C:\robocode\robots\Yeah.java (at line 26)
	public class WaveBullet
	             ^^^^^^^^^^
The public type WaveBullet must be defined in its own file
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1 problem (1 error)
Compile Failed (-1)

Source code right now:

import robocode.AdvancedRobot; import robocode.ScannedRobotEvent; import java.awt.geom.*;
import robocode.util.Utils;

public class Yeah extends AdvancedRobot {
public void run() {
   turnRadarRightRadians(Double.POSITIVE_INFINITY);
   do {
       scan();
   } while (true);
}
static double prevEnergy = 100.0;
public void onScannedRobot(ScannedRobotEvent e) {
   double radarTurn =
       // Absolute bearing to target
       getHeadingRadians() + e.getBearingRadians()
       // Subtract current radar heading to get turn required
       - getRadarHeadingRadians();

   setTurnRadarRightRadians(Utils.normalRelativeAngle(radarTurn));
{
	//energy monitoring
 	if(prevEnergy > (prevEnergy = e.getEnergy()) && getDistanceRemaining() == 0.0);
}
} } 

public class WaveBullet
{
	private double startX, startY, startBearing, power;
	private long   fireTime;
	private int    direction;
	private int[]  returnSegment;
 
	public WaveBullet(double x, double y, double bearing, double power,
			int direction, long time, int[] segment)
	{
		startX         = x;
		startY         = y;
		startBearing   = bearing;
		this.power     = power;
		this.direction = direction;
		fireTime       = time;
		returnSegment  = segment;
	}
	}