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Java program to expand a String if range is given?
To expand a String if range is given, the Java code is as follows −
Example
public class Demo {
public static void expand_range(String word) {
StringBuilder my_sb = new StringBuilder();
String[] str_arr = word.split(", ");
for (int i = 0; i < str_arr.length; i++){
String[] split_str = str_arr[i].split("-");
if (split_str.length == 2){
int low = Integer.parseInt(split_str[0]);
int high = Integer.parseInt(split_str[split_str.length - 1]);
while (low <= high){
my_sb.append(low + " ");
low++;
}
} else {
my_sb.append(str_arr[i] + " ");
}
}
System.out.println(my_sb.toString());
}
public static void main(String args[]){
String my_str = "1-4, 56-57, 99-101, 0-1";
System.out.println("The expanded range of given numbers is ");
expand_range(my_str);
}
}Output
The expanded range of given numbers is 1 2 3 4 56 57 99 100 101 0 1
A class named Demo contains a function named ‘expand_range’, that splits the string basedon commas, and iterates through the string and splits the numbers and increments 1 every time. This is displayed on the console. In the main function, the string is defined, and the function is called by passing this function as a parameter. Relevant message is displayed on the console.
Updated on: 08-Jul-2020
191 Views
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