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aleksley [76]
2 years ago
6

The following code is intended to test whether the int variable num is less than 10, and if so print a warning and set it to 10.

The code then prints the value of num.
if (num < 10)
System.out.println( "This is smaller than 10" );
num = 10;
System.out.println("Value of num is " + num);
What correction should be made so the code functions as intended?

An else statement should be added between the 3rd and 4th lines
The final line should be printed every time, not just when num hasn’t been changed.
A semicolon should be added at the end of the first line
The operator ‘<’ should be changed to ‘<=’ in the if statement
No correction should be made
Curly braces ‘{ }‘ should be added to enclose the second and third lines

Computers and Technology
1 answer:
hoa [83]2 years ago
6 0

The only correction I see is you need to add curly braces to enclose the second and third lines.

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Write the definition of a function power_to, which receives two parameters. The first is a float and the second is an integer. T
Ber [7]

Answer:

  1.    public static double power_2(double num1, int num2){
  2.        if(num2<0){
  3.            return 0;
  4.        }
  5.        else{
  6.            double returnedVal = Math.pow(num1,num2);
  7.            return returnedVal;
  8.        }
  9.    }

Explanation:

  • This is implemented in Java programming language
  • Line 1 Is the method declaration which indicates that it will return a floating point number (type double) and accepts two parameters, the first a double and the second an int as required by the question
  • Line 2 Uses and if statement to check if the second parameter is negative (less than 0) and returns 0.0 if this is true
  • Lines 5-7 is the else condition that uses java's Math.pow method to raise the num1 to the power num2 and returns the value
3 0
2 years ago
JAVA
barxatty [35]

Answer:

Answer is in the provided screenshot! This was a lot of fun to make!

Explanation:

We need to create a new Array which has to be the size of amount * original - as we now that we are going to have that many elements. Then we just iterate through all the values of the new array and set them equal to each of the elements in order.

Ignore the code in my main function, this was to print to the terminal the working code - as you can see from the output at the bottom!

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What does the binary odometer show about representing large numbers​
Gelneren [198K]

Answer and Explanation:

The binary odometer represents the large number to judge that what happened when there is a large number that gets too large

Here we visit the level 2 of the binary odometer widget in the chapter of Code studio

This represents a widget that reproduced an odometer of a car in which the tracking of a device could be known that how much far the car is driven with respect to the miles or kilometers

7 0
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Most ________ are accompanied by several common utility programs, including a search program, a storage management program, and
diamong [38]

Answer:

operating systems

Explanation:

The operating systems is shortly known as OS. It is a system software which manages the software resources of the computer, computer hardware and also provides some common services for the various computer programs.

Most of the operating systems available in the market provides some common utility programs such as the search program, a backup program and a storage management program also.

Some common operating systems are : Linux, Microsoft Windows, Ubuntu, macOS, Unix, and many more.

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2 years ago
This question involves the creation of user names for an online system. A user name is created based on a user’s first and last
Evgen [1.6K]

Answer:

See explaination

Explanation:

import java.util.*;

class UserName{

ArrayList<String> possibleNames;

UserName(String firstName, String lastName){

if(this.isValidName(firstName) && this.isValidName(lastName)){

possibleNames = new ArrayList<String>();

for(int i=1;i<firstName.length()+1;i++){

possibleNames.add(lastName+firstName.substring(0,i));

}

}else{

System.out.println("firstName and lastName must contain letters only.");

}

}

public boolean isUsed(String name, String[] arr){

for(int i=0;i<arr.length;i++){

if(name.equals(arr[i]))

return true;

}

return false;

}

public void setAvailableUserNames(String[] usedNames){

String[] names = new String[this.possibleNames.size()];

names = this.possibleNames.toArray(names);

for(int i=0;i<usedNames.length;i++){

if(isUsed(usedNames[i],names)){

int index = this.possibleNames.indexOf(usedNames[i]);

this.possibleNames.remove(index);

names = new String[this.possibleNames.size()];

names = this.possibleNames.toArray(names);

}

}

}

public boolean isValidName(String str){

if(str.length()==0) return false;

for(int i=0;i<str.length();i++){

if(str.charAt(i)<'a'||str.charAt(i)>'z' && (str.charAt(i)<'A' || str.charAt(i)>'Z'))

return false;

}

return true;

}

public static void main(String[] args) {

UserName person1 = new UserName("john","smith");

System.out.println(person1.possibleNames);

String[] used = {"harta","hartm","harty"};

UserName person2 = new UserName("mary","hart");

System.out.println("possibleNames before removing: "+person2.possibleNames);

person2.setAvailableUserNames(used);

System.out.println("possibleNames after removing: "+person2.possibleNames);

}

}

8 0
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