(1) append方法系列根据参数的数据类型在StringBuffer对象的末尾直接进行数据添加。
public StringBuffer append(boolean b)
public StringBuffer append(char c)
public StringBuffer append(char[] str)
public StringBuffer append(char[] str, int offset, int len)
public StringBuffer append(double d)
public StringBuffer append(float f)
public StringBuffer append(int i)
public StringBuffer append(long l)
public StringBuffer append(Object obj)
public StringBuffer append(String str)
public StringBuffer append(StringBuffer sb)
(2) insert方法系列根据参数的数据类型在StringBuffer的offset位置进行数据插入。
public StringBuffer insert(int offset, boolean b)
public StringBuffer insert(int offset, char c)
public StringBuffer insert(int offset, char[] str)
public StringBuffer insert(int index, char[] str, int offset, int len)
public StringBuffer insert(int offset, double d)
public StringBuffer insert(int offset, float f)
public StringBuffer insert(int offset, int i)
public StringBuffer insert(int offset, long l)
public StringBuffer insert(int offset, Object obj)
public StringBuffer insert(int offset, String str)
(3) 下面这个方法用于将stringbuffer对象的数据转换成字符串:
public String toString()