Java String Exercises: Get the character (Unicode code point) before the specified index within the String
Java String: Exercise-3 with Solution
Write a Java program to get the character (Unicode code point) before the specified index within the String.
Sample Solution:
Java Code:
public class Exercise3 {
public static void main(String[] args) {
String str = "w3resource.com";
System.out.println("Original String : " + str);
// codepoint before index 1
int val1 = str.codePointBefore(1);
// codepoint before index 9
int val2 = str.codePointBefore(9);
// prints character before index1 in string
System.out.println("Character(unicode point) = " + val1);
// prints character before index9 in string
System.out.println("Character(unicode point) = " + val2);
}
}
Sample Output:
Original String : w3resource.com Character(unicode point) = 119 Character(unicode point) = 99
Flowchart:
Visualize Java code execution (Python Tutor):
Java Code Editor:
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Next: Write a java program to count a number of Unicode code points in the specified text range of a String.
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
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