Using the switch statement, write a menu driven program for the following:
(1) To print the Floyd’s triangle [Given below]
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
(2) To display the following pattern:
I
I C
I C S
I C S E
For an incorrect option, an appropriate error message should be displayed.
Pattern - Java Code
Pattern Generator
(1) To print the Floyd’s triangle [Given below]
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
(2) To display the following pattern:
I
I C
I C S
I C S E
For an incorrect option, an appropriate error message should be displayed.
Answer
Pattern - Java Code
import java.util.Scanner;
public class Pattern
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.println("Type 1 for Floyd's triangle");
System.out.println("Type 2 for an ICSE pattern");
System.out.print("Enter your choice: ");
int ch = in.nextInt();
switch (ch) {
case 1:
int a = 1;
for (int i = 1; i <= 5; i++) {
for (int j = 1; j <= i; j++) {
System.out.print(a++ + "\t");
}
System.out.println();
}
break;
case 2:
String s = "ICSE";
for (int i = 0; i < s.length(); i++) {
for (int j = 0; j <= i; j++) {
System.out.print(s.charAt(j) + " ");
}
System.out.println();
}
break;
default:
System.out.println("Incorrect Choice");
}
}
}