📄 strbuff.java
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public class StrBuff{
public static void main(String[] args){
StringBuffer buf = new StringBuffer();
System.out.println(buf + " " + buf.length());
buf.append("asdl;kfj");
System.out.println(buf + " " + buf.length());
buf.insert(3, "Fuck");
System.out.println(buf + " " + buf.length());
System.out.println(buf.charAt(0) + "" + buf.charAt(3));
buf.replace(0, 3, "Fuck");
System.out.println(buf + " " + buf.length());
buf.reverse();
System.out.println(buf + " " + buf.length());
}
}
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