Using the StringBuilder Class

To memorize (StringBuilder methods)

public int length()
 
public char charAt(int index)
 
public int indexOf(int ch)
public int indexOf(int ch, int fromIndex)
public int indexOf(String str)
public int indexOf(String str, int fromIndex)
 
public String substring(int beginIndex)
public String substring(int beginIndex, int endIndex)
 
public StringBuilder append(String str)
 
public StringBuilder insert(int offset, String str)
 
public StringBuilder delete(int startIndex, int endIndex)
public Stringbuilder deleteCharAt(int index)
 
public StringBuilder replace(int startIndex, int endIndex, String newString)
 
public StringBuilder reverse()
 
public String intern()

4.1 Creating and Manipulating Strings Cheatsheet