ASCII game Java applet

My code first creates a Point object. Then it creates a 25 x 25 array of ASCII in a string where _ marks a miss and the point's symbol (in this case "X") marks a hit. Then, the user can move the point with the arrow keys and it rerenders.

This code is probably really badly written and terrible, but it works. I need some constructive feedback, and some tips on optimizing it as it kinda flickers whenever I move the x with the arrow keys.

import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;

public class _Newmain extends Canvas {
    private static int renderSizeX = 25;
    private static int renderSizeY = 25;

    private point player = new point(10,10,'X');
    public _Newmain() {
        setSize(new Dimension(500, 500));
        addKeyListener(new KeyAdapter(){
                @Override
                public void keyPressed(KeyEvent evt) {
                    moveIt(evt);
                }
            });
    }

    public void paint(Graphics g) {
        String text = m2.outputScreen(new point[]{player});
        int x = 20; int y = 20;
        for (String line : text.split("\n"))
            g.drawString(line, x, y += g.getFontMetrics().getHeight());

    }

    public void moveIt(KeyEvent evt) {
        switch (evt.getKeyCode()) {
            case KeyEvent.VK_DOWN:
            player.moveY(1);
            break;
            case KeyEvent.VK_UP:
            player.moveY(-1);
            break;
            case KeyEvent.VK_LEFT:
            player.moveX(-1);
            break;
            case KeyEvent.VK_RIGHT:
            player.moveX(1);
            break;
        }

        repaint();
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("TEXT BASED GAME WRITTEN BY 10REPLIES");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        _Newmain ex = new _Newmain();
        frame.getContentPane().add(ex);
        frame.pack();
        frame.setResizable(false);
        frame.setVisible(true);
        ex.requestFocus();

    }

    public static int windowY(){
        return renderSizeY;
    }

    public static int windowX(){
        return renderSizeX;
    }
}

ASCII generating class

public class m2
{
    // instance variables - replace the example below with your own
    public static void render(point[] input){
        System.out.print("\f");//Clears screen
        for(int y = 0; y < _Newmain.windowY(); y++){
            for(int x = 0; x < _Newmain.windowX(); x++){
                char found = ' ';

                for(int i = 0; i < input.length;i++){
                    if( input[i].getY() == y && input[i].getX() == x ){//checks to see if list of points contains a point at current x and y position
                        found = input[i].getChar();
                    }
                }
                System.out.print(found);//prints char if found else prints space
            }
            System.out.print("\n");
        }

    }
        public static String outputScreen(point[] input){
        String output ="";
        for(int y = 0; y < _Newmain.windowY(); y++){
            for(int x = 0; x < _Newmain.windowX(); x++){
                char found = '_';

                for(int i = 0; i < input.length;i++){
                    if( input[i].getY() == y && input[i].getX() == x ){//checks to see if list of points contains a point at current x and y position
                        found = input[i].getChar();
                    }
                }
                output=output+found;
            }
            output=output+"\n";
        }
        return output;
    }

}

Point class

public class point
{
    int x, y;
    char letter;
    public point(int inX, int inY, char letterRepresent)
    {
        x = inX;
        y = inY;
        letter=letterRepresent;
    }

    public char getChar(){return letter;}
    public int getX(){return x;}
    public int getY(){return y;}
    public void moveX(int ammount){x+=ammount;}
    public void setX(int location){x=location;}
    public void moveY(int ammount){y+=ammount;}
    public void setY(int location){y=location;}
}