Java StringBuffer insert method Example

/*
   Java StringBuffer insert method Example
   This example shows how a value can be inserted in to StringBuffer object. 
*/
 
public class JavaStringBufferInsertExample {
 
  public static void main(String[] args) {
    /* 
     Java StringBuffer class provides following methods to insert various
     primitive values and objects to StringBuffer object at specified offset.
    */
 
    /*
     StringBuffer insert(int offset, boolean b) method inserts
     boolean to StringBuffer object at specified offset
    */
    boolean b = true;
    StringBuffer sb1 =  new StringBuffer("Hello  World");
    sb1.insert(6,b);
    System.out.println(sb1);
 
    /*
     StringBuffer insert(int offset, char c) method inserts
     character to StringBuffer object at specified offset
    */
    char c = 'Y';
    StringBuffer sb2 =  new StringBuffer("Hello  World");
    sb2.insert(6,c);
    System.out.println(sb2);
 
 
    /*
     StringBuffer insert(int offset, char[] c1) method inserts
     character array to StringBuffer object at specified offset
    */
    char[] c1 = new char[] {'Y','e','s'};
    StringBuffer sb3 =  new StringBuffer("Hello  World");
    sb3.insert(6,c1);
    System.out.println(sb3);
 
 
    /*
     StringBuffer insert(int offset, double d) method inserts
     double to StringBuffer object at specified offset
    */
    double d = 1.0;
    StringBuffer sb4 =  new StringBuffer("Hello  World");
    sb4.insert(6,d);
    System.out.println(sb4);
 
 
    /*
     StringBuffer insert(int offset, float f) method inserts
     float to StringBuffer object at specified offset
    */
    float f = 2.0f;
    StringBuffer sb5 =  new StringBuffer("Hello  World");
    sb5.insert(6,f);
    System.out.println(sb5);
 
 
    /*
     StringBuffer insert(int offset, int i) method inserts
     integer to StringBuffer object at specified offset
    */
    int i = 5;
    StringBuffer sb6 =  new StringBuffer("Hello  World");
    sb6.insert(6,i);
    System.out.println(sb6);
 
 
    /*
     StringBuffer insert(int offset, long l) method inserts
     long to StringBuffer object at specified offset
    */
    long l = 10;
    StringBuffer sb7 =  new StringBuffer("Hello  World");
    sb7.insert(6,l);
    System.out.println(sb7);
 
    /*
     StringBuffer insert(int offset, Object obj) method inserts
     Object to StringBuffer object at specified offset
    */
    Object obj = new String("My");
    StringBuffer sb8 =  new StringBuffer("Hello  World");
    sb8.insert(6,obj);
    System.out.println(sb8);
 
    /*
     StringBuffer insert(int offset, String str) method inserts
     String to StringBuffer object at specified offset
    */
    String str = "New";
    StringBuffer sb9 =  new StringBuffer("Hello  World");
    sb9.insert(6,str);
    System.out.println(sb9);
 
    /*
     NOTE: Above all method throws StringIndexOutOfBoundsException if the 
     offset is less than 0 or grater than length of StringBuffer object.  
    */
  }
}
 
/*
Output would be
 
Hello true World
Hello Y World
Hello Yes World
Hello 1.0 World
Hello 2.0 World
Hello 5 World
Hello 10 World
Hello My World
Hello New World
 
*/