Answer:
//here is code in java.
import java.util.*;
class Solution
{
// main method of class
public static void main (String[] args) throws java.lang.Exception
{
try{
// declare an initialize first string variables
String st1="hello";
// declare an initialize first string variables
String st2="world";
// create another string variable
String st3;
// exchange the value of both string variables
st3=st1;
st1=st2;
st2=st3;
System.out.println("value of first String after exchange: "+st1);
System.out.println("value of second String after exchange: "+st2);
}catch(Exception ex){
return;}
}
}
Explanation:
declare and initialize two string variables.Create another string variable "st3". first assign value of "st1" to "st3" after then value of "st2" to "st1" and then assign value of "st3" to "st2". This will exchange the values of both the string.
Output:
value of first String after exchange: world
value of second String after exchange: hello
The first one is d the second one is true the third one is false
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If you want to set the sticky bit on an existing directory, subdir, without otherwise altering its permissions. to do so, you should type chmod a <u>t <subdir>.</u>
<h3>What is
Subdir?</h3>
The Definition of the term subdirectory is known to be a kind of an organizational directory that can be seen on a computer.
It is known to be one that can be found inside another directory such as a subfolder. It is seen as the file a person is looking for and it is one that needs to have an extension.
Therefore, if you want to set the sticky bit on an existing directory, subdir, without otherwise altering its permissions. to do so, you should type chmod a <u>t <subdir>.</u>
Learn more about directory from
brainly.com/question/14845522
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See full question below
You want to set the sticky bit on an existing directory, subdir, without otherwise altering its permissions. To do so, you should type:
chmod a+_____ <subdir>
- s
- p
- b
- t
Answer:
system software is the set of computer programs that controls and manage the operations of computer hardware.
