import java.io.*;
import java.util.*;
public class Mang01{
public static void main(
		String[] args){
		int[] a = new int[] {4, 3, 6, 1};
		System.out.println("Length: " + a.length);
		System.out.println("Mang: ");
		for (int i=0; i<a.length; i++ )
			System.out.println(a[i]);
		
		int[] b;
		//b=a;
		b=new int [a.length];
		System.arraycopy( a, 0, b, 0, a.length);
		System.out.println("Mang b: ");
		a[0]=0;
		for (int i=0; i<b.length; i++ )
			System.out.println(b[i]);
		//sap xep mang
		Arrays.sort(a);
		/*
		for (int i=0; i<a.length-1; i++)
			for (int j=i+1; j<a.length; j++)
				if (a[i]>a[j]){
					int tg=a[i];
					a[i]=a[j];
					a[j]=tg;
				}
		*/
		
		System.out.println("Mang A da sap xep: ");
		for (int i=0; i<a.length; i++ )
			System.out.println(a[i]);
		
}//main
}//class