These devices: monitor, earphone, speakers are examples of what? Input devices Storage devices Output devices All answer are cor
2 answers:
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Answer:
Following are the code to this question:
public class ArrayMath//defining a class ArrayMath
{
public static void main(String[] args) //defining main method
{
int x[][]=new int[10][10]; //defining a 2D array
arrays(x);//calling a method arrays by passing an array
}
private static void arrays(int[][] x)//defining a method arrays
{
int odd_column_sum=0,sum_of_Elements=0,i,j,even=1;//defining integer variable
for(i=0;i<x.length;i++)//defining loop for columns
{
for(j=0;j<x[0].length;j++)//defining loop for rows
{
x[i][j]=i*j;//multiply the i and j value atore in array
}
}
System.out.println("::The 2D array :: ");//print message
for(i=0;i<x.length;i++)//defining loop for columns
{
System.out.print("\t");//use print method for line space and line break
for(j=0;j<x[0].length;j++)//defining loop for rows
{
System.out.printf("%d\t",x[i][j]); //print array values
}
System.out.println( );//print for line break
}
for(i=0;i<x.length;i++) //defining loop for Columns
{
for(j=0;j<x[0].length;j++) //defining loop for rows
{
if(even%2!=0)//defining if block for check odd number condition
{
odd_column_sum+=x[j][i];//add odd number of array
}
sum_of_Elements+=x[i][j];//add even number of array
}
even++;//increment even variable value by 1
}
System.out.println("The sum of Odd Columns:"+odd_column_sum);//print odd_column_sum value
System.out.println("The array elements :"+sum_of_Elements);//print sum_of_Elements value
}
}
Output:
please find attached file.
Explanation:
In the above-given code, a class "ArrayMath" is defined, inside the class the main method is declared, which define a 2D array "x", this stores 10 columns and 10 rows and at the last, we call the arrays method by passing an array as a variable.
In the arrays method, integer variable, "odd_column_sum, sum_of_Elements, i, j, and even" is defined, in which variable "i and j" is used in the loop for calculating value, even is used to check odd column and then store its value in the "odd_column_sum" variable, and add whole element value is added into the "sum_of_Elements" variable.
Answer:
Here is the JAVA program. I have added a few more abbreviations apart from LOL and IDK.
import java.util.Scanner; // to take input from user
public class MessageAbbreviation {
public static void main(String[] args) { //start of main() function body
Scanner input = new Scanner(System.in); // create object of Scanner
String abbreviation= ""; //stores the text message abbreviation
/* In the following lines the abbreviation string type variables contain the un-abbreviated forms */
String LOL = "laughing out loud";
String IDK = "i don't know";
String BFF = "best friends forever";
String IMHO = "in my humble opinion";
String TMI = "too much information";
String TYT = "take your time";
String IDC = "I don't care";
String FYI = "for your information";
String BTW = "by the way";
String OMG = "oh my God";
//prompts the user to enter an abbreviation for example LOL
System.out.println("Input an abbreviation:" + " ");
if(input.hasNext()) { // reads the abbreviation form the user
abbreviation= input.next(); }
// scans and reads the abbreviation from user in the abbreviation variable
/*switch statement checks the input abbreviation with the cases and prints the un abbreviated form in output accordingly. */
switch(abbreviation) {
case "LOL" : System.out.println(LOL);
break;
case "IDK" : System.out.println(IDK);
break;
case "BFF" : System.out.println(BFF);
break;
case "IMHO": System.out.println(IMHO);
break;
case "TMI": System.out.println(TMI);
break;
case "TYT": System.out.println(TYT);
break;
case "IDC": System.out.println(IDC);
break;
case "FYI": System.out.println(FYI);
break;
case "BTW": System.out.println(BTW);
break;
case "OMG": System.out.println(OMG);
break;
default : System.out.println("Unknown"); } } }
Explanation:
The program first prompts the user to enter an abbreviation. Lets say the user enters LOL. Now the switch statement has some cases which are the conditions that are checked against the input abbreviation. For example if the user enters LOL then the following statement is executed:
case "LOL" : System.out.println(LOL);
This means if the case is LOL then the message ( un abbreviated form) stored in the LOL variable is displayed on output screen So the output is laughing out loud.
Anything else entered other than the given abbreviations will display the message: Unknown
The output is attached as screen shot.
