java中不定长参数的实例用法

/**

 * 定义不定长参数方法

 * 

 * @author pan_junbiao

 *

 */

public class MyTest

{

  public static int add(int... a)

  {

    int s = 0;

    for (int i = 0; i < a.length; i++)

    {

      s += a[i];

    }

    return s;

  }

 

  public static void main(String[] args)

  {

    // 调用不定长参数方法

    System.out.println("调用不定长参数方法：" + add(1, 2, 3, 4, 5, 6, 7, 8, 9));

    System.out.println("调用不定长参数方法：" + add(1, 2));

  }

}

package com;

// 这里使用了静态导入
import static java.lang.System.out;

public class VarArgsTest {

  public void print(String... args) {
    for (int i = 0; i < args.length; i++) {
      out.println(args[i]);
    }
  }

  public void print(String test) {
    out.println("----------");
  }

  public static void main(String[] args) {
    VarArgsTest test = new VarArgsTest();
    test.print("hello");
    test.print("hello", "alexia");
  }
}