scanner.lex.java

有关JDBC的使用一些编程实例,有关与数据库连接的代码

import java.util.*;
import java.lang.*;
import java_cup.runtime.*;
import java.io.*;


class scanner {
	private final int YY_BUFFER_SIZE = 512;
	private final int YY_F = -1;
	private final int YY_NO_STATE = -1;
	private final int YY_NOT_ACCEPT = 0;
	private final int YY_START = 1;
	private final int YY_END = 2;
	private final int YY_NO_ANCHOR = 4;
	private final byte YYEOF = -1;

static scanner foo;
public static void init(InputStream is) {
  foo = new scanner(is);
}
public static token next_token() throws java.io.IOException {
  return foo.yylex();
}
	private java.io.DataInputStream yy_instream;
	private int yy_buffer_index;
	private int yy_buffer_read;
	private int yy_buffer_start;
	private int yy_buffer_end;
	private byte yy_buffer[];
	private int yy_lexical_state;
	scanner (java.io.InputStream instream) {
		if (null == instream) {
			throw (new Error("Error: Bad input stream initializer."));
		}
		yy_instream = new java.io.DataInputStream(instream);
		yy_buffer = new byte[YY_BUFFER_SIZE];
		yy_buffer_read = 0;
		yy_buffer_index = 0;
		yy_buffer_start = 0;
		yy_buffer_end = 0;
		yy_lexical_state = YYINITIAL;
	}
	private boolean yy_eof_done = false;
	private final int YYINITIAL = 0;
	private final int yy_state_dtrans[] = {
		0
	};
	private void yybegin (int state) {
		yy_lexical_state = state;
	}
	private byte yy_advance ()
		throws java.io.IOException {
		int next_read;
		int i;
		int j;

		if (yy_buffer_index < yy_buffer_read) {
			return yy_buffer[yy_buffer_index++];
		}

		if (0 != yy_buffer_start) {
			i = yy_buffer_start;
			j = 0;
			while (i < yy_buffer_read) {
				yy_buffer[j] = yy_buffer[i];
				++i;
				++j;
			}
			yy_buffer_end = yy_buffer_end - yy_buffer_start;
			yy_buffer_start = 0;
			yy_buffer_read = j;
			yy_buffer_index = j;
			next_read = yy_instream.read(yy_buffer,
					yy_buffer_read,
					yy_buffer.length - yy_buffer_read);
			if (-1 == next_read) {
				return YYEOF;
			}
			yy_buffer_read = yy_buffer_read + next_read;
		}

		while (yy_buffer_index >= yy_buffer_read) {
			if (yy_buffer_index >= yy_buffer.length) {
				yy_buffer = yy_double(yy_buffer);
			}
			next_read = yy_instream.read(yy_buffer,
					yy_buffer_read,
					yy_buffer.length - yy_buffer_read);
			if (-1 == next_read) {
				return YYEOF;
			}
			yy_buffer_read = yy_buffer_read + next_read;
		}
		return yy_buffer[yy_buffer_index++];
	}
	private void yy_move_start () {
		++yy_buffer_start;
	}
	private void yy_pushback () {
		--yy_buffer_end;
	}
	private void yy_mark_start () {
		yy_buffer_start = yy_buffer_index;
	}
	private void yy_mark_end () {
		yy_buffer_end = yy_buffer_index;
	}
	private void yy_to_mark () {
		yy_buffer_index = yy_buffer_end;
	}
	private java.lang.String yy_gettext () {
		return (new java.lang.String(yy_buffer,0,
			yy_buffer_start,
			yy_buffer_end - yy_buffer_start));
	}
	private byte[] yy_double (byte buf[]) {
		int i;
		byte newbuf[];
		newbuf = new byte[2*buf.length];
		for (i = 0; i < buf.length; ++i) {
			newbuf[i] = buf[i];
		}
		return newbuf;
	}
	private final int YY_E_INTERNAL = 0;
	private final int YY_E_MATCH = 1;
	private java.lang.String yy_error_string[] = {
		"Error: Internal error.\n",
		"Error: Unmatched input.\n"
	};
	private void yy_error (int code,boolean fatal) {
		java.lang.System.out.print(yy_error_string[code]);
		java.lang.System.out.flush();
		if (true == fatal) {
			throw new Error("Fatal Error.\n");
		}
	}
	private int yy_acpt[] = {
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NOT_ACCEPT,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR,
		YY_NO_ANCHOR
	};
	private int yy_cmap[] = {
		0, 0, 0, 0, 0, 0, 0, 0,
		1, 1, 2, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0,
		1, 0, 3, 0, 0, 0, 0, 4,
		5, 6, 7, 0, 8, 0, 9, 0,
		10, 10, 10, 10, 10, 10, 10, 10,
		10, 10, 0, 11, 12, 13, 14, 0,
		0, 15, 16, 17, 18, 19, 20, 21,
		22, 23, 24, 24, 25, 26, 27, 28,
		29, 24, 30, 31, 32, 33, 34, 35,
		24, 24, 24, 0, 36, 0, 0, 37,
		0, 24, 24, 24, 24, 24, 24, 24,
		24, 24, 24, 24, 24, 24, 24, 24,
		24, 24, 24, 24, 24, 24, 24, 24,
		24, 24, 24, 0, 0, 0, 0, 0
		
	};
	private int yy_rmap[] = {
		0, 1, 1, 1, 1, 1, 1, 2,
		1, 3, 4, 1, 1, 5, 6, 5,
		7, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 8, 1, 9,
		8, 10, 5, 5, 10, 11, 12, 13,
		14, 15, 16, 17, 18, 19, 20, 21,
		22, 23, 24, 25, 26, 27, 28, 29,
		30, 31, 32, 33, 34, 35, 36, 37,
		38, 39, 40, 41, 42, 43, 44, 45,
		46, 47, 48, 49, 50, 51, 52, 5,
		53, 54, 55, 56, 57, 58, 59, 60,
		61, 62, 63, 64, 65, 66, 67, 68,
		69, 70, 71, 72, 73, 74, 75 
	};
	private int yy_nxt[][] = {
		{ -1, 1, 1, 29, 36, 2, 3, 4,
			5, 6, 7, 8, 9, 30, 37, 10,
			79, 88, 92, 79, 93, 79, 79, 94,
			79, 79, 79, 95, 79, 79, 79, 96,
			97, 98, 99, 100, -1, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 7, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, 30, 30, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 31, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 62, 79, 79, 79, 79,
			79, 79, 79, 79, 19, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 86,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ 29, 29, -1, 11, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 39, 29 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 13, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ 36, 36, -1, 36, 12, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 41, 36 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, 30, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 53,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ 29, 43, 45, 32, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 39, 29 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 54, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ 36, 47, 49, 36, 33, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 41, 36 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 55, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ 29, 43, 45, 11, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 29, 29, 29, 29,
			29, 29, 29, 29, 39, 29 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 56, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, 45, 45, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, 29, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 83,
			14, 79, 79, 79, -1, 79 
		},
		{ 36, 47, 49, 36, 12, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 36, 36, 36, 36,
			36, 36, 36, 36, 41, 36 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 102, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, 49, 49, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, -1, -1, 36, -1 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 89, 79, 79, 79, 79, 79, 79,
			15, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			58, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 101, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 16, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 61,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 85, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 17, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 18, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 64, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 65, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 66, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			67, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 79, 79, 87, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 71, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 20, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 73, 79, 79, 79, 79,
			79, 79, 79, 79, 79, 79, 79, 79,
			79, 79, 79, 79, -1, 79 
		},
		{ -1, -1, -1, -1, -1, -1, -1, -1,
			-1, -1, 79, -1, -1, -1, -1, 79,
			79, 79, 79, 21, 79, 79, 79, 79,
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