Computer Applications
Write a program to input twenty names in an array. Arrange these names in descending order of letters, using the bubble sort technique.
Answer
import java.util.Scanner;
public class KboatArrangeNames
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
String names[] = new String[20];
System.out.println("Enter 20 names:");
for (int i = 0; i < names.length; i++) {
names[i] = in.nextLine();
}
//Bubble Sort
for (int i = 0; i < names.length - 1; i++) {
for (int j = 0; j < names.length - 1 - i; j++) {
if (names[j].compareToIgnoreCase(names[j + 1]) < 0) {
String temp = names[j + 1];
names[j + 1] = names[j];
names[j] = temp;
}
}
}
System.out.println("\nSorted Names");
for (int i = 0; i < names.length; i++) {
System.out.println(names[i]);
}
}
}Output
Related Questions
Define a class to accept values into 4x4 array and find and display the sum of each row.
Example:
A[][]={{1,2,3,4},{5,6,7,8},{1,3,5,7},{2,5,3,1}}
Output:
sum of row 1 = 10 (1+2+3+4) sum of row 2 = 26 (5+6+7+8) sum of row 3 = 16 (1+3+5+7) sum of row 4 = 11 (2+5+3+1)A single dimensional array has 50 elements, which of the following is the correct statement to initialize the last element to 100.
- x[51]=100
- x[48]=100
- x[49]=100
- x[50]=100
Consider the following program segment and answer the questions given below:
int x[][] = {{2,4,5,6}, {5,7,8,1}, {34, 1, 10, 9}};(a) What is the position of 34?
(b) What is the result of x[2][3] + x[1][2]?
Write a Java program to store n numbers in an one dimensional array. Pass this array to a function number(int a[]). Display only those numbers whose sum of digit is prime.