wordtype.java

用java写的一段PL0编译程序.用户可以在文本框内输入一段PL0代码

public class WordType
{
	public static final int CONSTANT = 1;
	public static final int ID = 2;
	public static final int PROCEDURE = 3;
	public static final int KEYWORD = 4;
	public static final int NUM = 5;
	public static final int SIGN = 6;
	public static final int WORDERROR = 7;
	public static final int VAEIABLE = 8;
	
	public static String get_str(int i)
	{
		if(i==1)
			return "CONSTANT";
		if(i==2)
			return "ID";
		if(i==3)
			return "PROCEDURE";
		if(i==4)
			return "KEYWORD";
		if(i==5)
			return "NUM";
		if(i==6)
			return "SIGN";
		if(i==7)
			return "WORDERROR";
		if(i==8)
			return "VAEIABLE";
		return "";
	}
}