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摘要： 1 package hjw; 2 import java.io.BufferedReader; 3 import java.io.IOException; 4 import java.io.InputStreamReader; 5 import java.text.ParseException; 6 import java.text.SimpleDateFormat; 7 import java.util.Date; 8 class InputData{ 9 private BufferedReader buf=null;10 public InputData(){11 ... 阅读全文

摘要： 1 import java.io.BufferedReader; 2 import java.io.IOException; 3 import java.io.InputStreamReader; 4 public class BufferdReaderDemo1 { 5 public static void main(String[] args) { 6 BufferedReader buf=new BufferedReader(new InputStreamReader(System.in)); 7 String str=null; 8 ... 阅读全文

摘要： 1 import java.io.File; 2 import java.io.InputStream; 3 import java.io.PrintStream; 4 public class PrintDemo { 5 public static void main(String[] args) throws Exception{ 6 InputStream ipt=System.in;//通过键盘接收 7 StringBuffer buf=new StringBuffer(); 8 System.out.print("请输入：")... 阅读全文

摘要： 1 import java.io.File; 2 import java.io.FileOutputStream; 3 import java.io.PrintStream; 4 public class PrintDemo { 5 public static void main(String[] args) throws Exception{ 6 PrintStream ps=new PrintStream(new FileOutputStream(new File("d:"+File.separator+"te.txt"))); 7 ps.prin. 阅读全文

摘要： 1 import java.io.File; 2 import java.io.FileInputStream; 3 import java.io.FileOutputStream; 4 import java.io.InputStream; 5 import java.io.OutputStream; 6 import java.io.IOException; 7 import java.io.FileNotFoundException; 8 public class Copy { 9 public static void main(String[] args) throw... 阅读全文