curseur.java

来自「Java编写的模仿图灵机的程序源代码」· Java 代码 · 共 57 行

package Moteur;

/**
 * @author [e-mail]
 *
 */

public class Curseur {
	int position;
	private StringBuffer bande=new StringBuffer();
	
	public Curseur(){
		initialise();
	}
	
	public void setBande(StringBuffer b){
		bande=b;
	}
	
	
	public char lire(){
		return bande.charAt(position);
	}
	
	public void ecrire(char c){
		bande.setCharAt(position,c);
	}
	

	
	

	public String getEntreeAvecCurseur(){
		StringBuffer buf=new StringBuffer(bande);
		
		buf.insert(position, '<');
		buf.insert(position+2, '>');
		return buf.toString();
	}
	
	public void deplace(short direction)  {
		position+=direction;
		
	}

	public String getBandeFichier() {
		return bande.toString();
	}

	public void initialise() {
		position=0;
		
	}

	
}