StringBuffer append()methods in Java Example

StringBuffer append(char[] str,int offset,int len) :This method appends the substring to the end of the string buffer. The substring appended is a character sequence beginning at the index offset with the number of characters appended equal to len of the character array str. For example,

char [] chArr = {, t’ ,’o’ ” ‘,’ J’ ,’a’,’v’,’a’};

s1.append(chArr,2,5);

willl append’ ‘,’ J’ ,’a’,’v’,’a’ characters at the end of the string “Welcome”, which results in “Welcome Java”.

public class StringBufferAppendMethod 
 { 
        public static void main(String[] args) 
      { 
             StringBuffer s1 = new StringBuffer("Welcome"); 
             s1.append(" Dinesh Thakur"); 
             System.out.println("s1 : " +s1); 
             s1.append(" ").append("to").append(" Home").append("!"); 
             System.out.println("s1 : " +s1); 
             StringBuffer s2 = new StringBuffer("Welcome"); 
             char[] chArr = {'t','o',' ','j','a','v','a'}; 
             s2.append(chArr,2,5); 
             System.out.println("s2 : " + s2); 
       } 
 }