Answer: True
Explanation:
The definition of minimum spanning tree(MST) says that the graph must be connected and undirected to be considered for MST. It has (V-1) edges where V is the number of vertices. The minimum spanning tree is implemented using Kruskal's algorithm whereby it starts by considering the minimum weighted edge and covers all the edges upto (V-1) edges. So for MST it has to be connected
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
Answer:
See explaination
Explanation:
void showSeatingChart(string seatingChart[20][40], const int ROWS, const int COLS){
for(int i = 0;i<ROWS;i++){
for(int j = 0;j<COLS;j++){
cout<<seatingChart[i][j]<<" ";
}
cout<<endl;
}
}
Answer:
//Define class
public class Main {
//define main method
public static void main(String[] args)
{
//declare and initialize the double type variable to 128
double mexico = 128;
//declare and initialize the double type variable to 323
double us = 323;
//declare and initialize the integer type variable to 0
int yr = 0;
//set the while loop to check which is greater
while (mexico < us)
{
//increment in the variable by 1
yr++;
//initialize in the variables acc. to the percentage
mexico *= 1.0101;
us *= 0.9985;
}
//print the following results
System.out.println("Population of the Mexico will be exceed the population U.S. in " + yr + " years");
System.out.println("Population of the Mexico will be " + mexico + " million");
System.out.println("and population of the U.S. will be " + us + " million");
}
}
<u>Output</u>:
Population of the Mexico will be exceed the population U.S. in81 years
Population of the Mexico will be 288.88435953355025 million
and population of the U.S. will be 286.0198193927948 million
Explanation:
<u>Following are the description of the program</u>.
- Firstly, we define the class 'Main' and inside it, we define the main method.
- Then, declare two double data type variables which are 'mexico' and 'us' and initialize in it to 128 and 323.
- Declare integer data type variable 'yr' and initialize in it to 0.
- Set the while loop and pass the condition to check that the variable 'mexico' is less than the variable 'us' then, increment in the variable 'yr' by 1 and multiply the variables 'us' and 'mexico' by the following percentage.
- Finally, print the following results with the message.
