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io流

1.打印流(PrintStream、PrintWriter) String name = "apq"; int age = 100; PrintStream out = new PrintStream(new FileOutputStream(new File("d:/1.dat"))); out.printf("Name: %s, Age: %s", name, age); 2.字节流(InputStream、OutputStream) InputStream in = new FileInputStream( ...

优先队列Queue

Class: package Heap; import MyInterface.Comparator; import MyInterface.Queue; import java.util.NoSuchElementException; import java.util.Arrays; public class PriorityQueue<T> implements Queue<T> { private T[] arr; private int qSize; private Comparator<T> comp; ...
--运行sql脚本 start d:\sql\test.sql; --截取屏幕内容 spool d:\sql\test_bak.sql; select * from emp; spool off; --导出表(要进到oracle安装目录下面的bin目录下面进行导出) exp userid=scott/tiger@ORA1 tables=(emp) file=d:\emp_bak.dmp; --导出表结构 exp userid=scott/tiger@ORA1 tables=(emp) file=d:\emp_bak.dmp rows=n; --导出表结构 exp ...
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