格林模拟试题三（下）(1)

 question 31)

which of the following statements are true?

1) the default layout manager for an applet is flowlayout
3) a layout manager must be assigned to an applet before the setsize method is called
question 32)

which of the following statements are true about a variable created with the static modifier?

1) once assigned the value of a static variable may not be altered
3) only one instance of a static variable will exist for any amount of class instances
question 33)

which of the following statements are true?

1) java uses a system called utf for i/o to support international character sets
3) an instance of fileinputstream may not be chained to an instance of fileoutputstream
question 34)

what will happen when you attempt to compile and run the following code?

import java.io.*;class exbase{ abstract public void martley(){ }}public class myex extends exbase{ public static void main(string argv){ datainputstream fi = new datainputstream(system.in); try{ fi.readchar(); }catch(ioexception e){ system.exit(0); } finally {system.out.println("doing finally");} }}

1) compile time error
3) it will run, wait for a keypress, print "doing finally" then exit