39 Program to implement all methods of StringBuffer class in Java

Code:

class Str
{
public static void main( String args[] )
{
StringBuffer s = new StringBuffer("Coding Atharva");

System.out.println("\n String = "+s); // Will Print the string

System.out.println("\n Length = "+s.length() ); // total numbers of characters
System.out.println("\n Length = "+s.capacity() ); // total allocated capacity

s.setLength(6); // Sets the length and destroy the remaining characters
System.out.println("\n After setting length String = "+s );

s.setCharAt(0,'K'); // It will change character at specified position
System.out.println("\n SetCharAt String = "+s );

s.setCharAt(0,'C');

int a = 007;
s.append(a); // It concatenates the other data type value
System.out.println("\n Appended String = "+s );

s.insert(6," Atharva"); // used to insert one string or char or object
System.out.println("\n Inserted String = "+s );

s.reverse();
System.out.println("\n Reverse String = "+s );

s.reverse();

s.delete(6,14); // used to delete sequence of character
System.out.println("\n\n After deleting string="+s);
}
}

Output:

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