GZ/nwyj/.svn/pristine/95/95e560c211e515aaeecea2ac266f14dd4e5a3a3b.svn-base

package samples.technology.reference1;

class UnCloneA implements Cloneable{
	
		private int i; 
		public UnCloneA(int ii) {i = ii; } 
		public void doublevalue() {i *= 2; } 
		public String toString() {
		return Integer.toString(i); 
		} 


		public Object clone(){
			UnCloneA o = null; 
			try{
			o = (UnCloneA)super.clone(); 
			}catch(CloneNotSupportedException e){
			e.printStackTrace(); 
			} 
			return o; 
		} 
	

} 
class CloneB implements Cloneable{
	
	public int aInt; 
	public UnCloneA unCA = new UnCloneA(111); 
	
	public Object clone(){
		CloneB o = null; 
		try{
		o = (CloneB)super.clone(); 
		}catch(CloneNotSupportedException e){
		e.printStackTrace(); 
		} 
		o.unCA = (UnCloneA)unCA.clone(); 
		return o; 
	} 
} 

public class CloneMain {
	
	public static void main(String[] a){
	CloneB b1 = new CloneB(); 
	b1.aInt = 11; 
	System.out.println("before clone,b1.aInt = "+ b1.aInt); 
	System.out.println("before clone,b1.unCA = "+ b1.unCA); 

	CloneB b2 = (CloneB)b1.clone(); 
	b2.aInt = 22; 
	b2.unCA.doublevalue(); 
	System.out.println("================================="); 
	System.out.println("after clone,b1.aInt = "+ b1.aInt); 
	System.out.println("after clone,b1.unCA = "+ b1.unCA); 
	System.out.println("================================="); 
	System.out.println("after clone,b2.aInt = "+ b2.aInt); 
	System.out.println("after clone,b2.unCA = "+ b2.unCA); 
	} 
	
} 

	/** RUN RESULT: 
	before clone,b1.aInt = 11 
	before clone,b1.unCA = 111 
	================================= 
	after clone,b1.aInt = 11 
	after clone,b1.unCA = 111 
	================================= 
	after clone,b2.aInt = 22 
	after clone,b2.unCA = 222 
	*/