1 //String Constructors. java 2 / /This program demonstrates the String class constructors 3 4 /Java extension packages 5 import javax. swing. "i 7 public class String Constructors i 9 / test String constructors 10 public static void main( String args) String default constructor 12 char charArrayl=(b,'i,r,'t,h,', Instantiates empty string 14 byte bytearrayl =i( byte)n, (byte)e Constructor copies String (byte)w, byte), byte)y (byte)e, byte)a, byte)'ri Constructor copies character array 18 String Buffer buffer 19 String s, sl, s2, s3, s4, s5, s6, s7, output; Constructor copies character- 21 s=new String("hello"); array subset 22 buffer new String Buffery Welcome to Java Programming! " 23 24 M/ use String constructors Constructor copies byte array 25 sl=new String: 2=new String(s ) Constructor copies bvte-array subset 27 s3= new String( charArray ) s4=new String( charArray, 6,3) s5=new String( byteArray, 4, 4 s6=new String( byteArray ) 31 s7=new String( buffer ) Constructor copies stringBuffer Liang, introduction to Java Trogrartinnng, reused Dy Dal-KalyuLiang,Introduction to Java Programming,revised by Dai-kaiyu Liang,Introduction to Java Programming,revised by Dai-kaiyu 8 1 // StringConstructors.java 2 // This program demonstrates the String class constructors. 3 4 // Java extension packages 5 import javax.swing.*; 6 7 public class StringConstructors { 8 9 // test String constructors 10 public static void main( String args[] ) 11 { 12 char charArray[] = { 'b', 'i', 'r', 't', 'h', ' ', 13 'd', 'a', 'y' }; 14 byte byteArray[] = { ( byte ) 'n', ( byte ) 'e', 15 ( byte ) 'w', ( byte ) ' ', ( byte ) 'y', 16 ( byte ) 'e', ( byte ) 'a', ( byte ) 'r' }; 17 18 StringBuffer buffer; 19 String s, s1, s2, s3, s4, s5, s6, s7, output; 20 21 s = new String( "hello" ); 22 buffer = new StringBuffer( "Welcome to Java Programming!" ); 23 24 // use String constructors 25 s1 = new String(); 26 s2 = new String( s ); 27 s3 = new String( charArray ); 28 s4 = new String( charArray, 6, 3 ); 29 s5 = new String( byteArray, 4, 4 ); 30 s6 = new String( byteArray ); 31 s7 = new String( buffer ); 32 Constructor copies StringBuffer Constructor copies byte-array subset Constructor copies byte array Constructor copies character￾array subset Constructor copies character array Constructor copies String String default constructor instantiates empty string