类的带参方法!

package zy;

import java.util.Scanner;

public class Dome01 {
	String[] names = new String[30];

	public void addName(String name) {
		for (int i = 0; i < names.length; i++) {
			if (names[i] == null) {
				names[i] = name;
				break;

			}

		}

	}

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		Dome01 a = new Dome01();
		String con = "y";
		while (con.equals("y")) {
			System.out.println("请输入客户的姓名:");
			String newName = input.next();
			a.addName(newName);
			System.out.print("继续输入码?(y/n):");
			con = input.next();
		}if (con.equals("n")) {
			for (int i = 0; i < a.names.length; i++) {
				if (a.names[i]!=null) {
					System.out.println(a.names[i]);
				}
			}
		}

	}
}

　　

ackage zy;

import java.lang.reflect.Array;
import java.util.Arrays;

public class Dome03 {

		public void showNames(String[] names) {
			Arrays.sort(names);

		}
	

	public  static void main(String[] args){
		Dome03 st = new Dome03();
			String[] namesbysort =new String[]{"yom","Jack","Merry","Smith","Sunny"};
			System.out.println("**********排序前***********");
for(int i=0; i<namesbysort.length;i++){
	if(namesbysort[i] !=null){
		System.out.println(namesbysort[i]+"\t");
	}
}
		Arrays.sort(namesbysort);
		System.out.println("\n*********排序后***********");
		for(int i=0;i<namesbysort.length;i++){
			if(namesbysort[i] !=null){
				System.out.println(namesbysort[i]="\t");
			}
		}
		
	}
}