Clear the StringBuffer
Rust Programming Language
Problem
In Rust, we can use the clear() method to remove all characters from a String buffer. Here's an example program that demonstrates how to clear a String buffer.
Input
fn main() {let mut buffer = String::from("hello, world!");println!("Before clear: {}", buffer);buffer.clear();println!("After clear: {}", buffer);}{codeBox}
Output
Before clear: hello, world!After clear: {codeBox}
Explanation
In this program, we create a String buffer buffer with the value "hello, world!". We then print the buffer to the console using println!(). Next, we call the clear() method to remove all characters from the buffer. Finally, we print the buffer again to the console to show that it is now empty.