question 37)

given the following code

import java.awt.*;
public class setf extends frame{
public static void main(string argv[]){
 setf s=new setf();
 s.setsize(300,200);
 s.setvisible(true);
 }

}

how could you set the frame surface color to pink

1)s.setbackground(color.pink);
2)s.setcolor(pink);
3)s.background(pink);
4)s.color=color.pink

question 38)
how can you change the current working directory using an instance of the file class called filename?
1) filename.chdir("dirname")
2) filename.cd("dirname")
3) filename.cwd("dirname")
4) the file class does not support directly changing the current directory.

question 39)

if you create a textfield  with a constructor to set it to occupy 5 columns, what difference will it make if you use it with a proportional font (ie times roman) or a fixed pitch typewriter style font (courier).

1)with a fixed font you will see 5 characters, with a  proportional it will depend on the width of the characters
2)with a fixed font you will see 5 characters,with a  proportional it will cause the field to expand to fit the text 3)the columns setting does not affect the number of characters displayed
4)both will show exactly 5 characters