transbyvalue.java

java程序设计源代码

 public class TransByValue {
	 private static int a;
	 public static void main (String[] args) {
		 int a = 0;
		 modify (a); System.out.println(a);//输出0

		 int [] b = new int [1];
		 modify(b);
		 System.out.println(b[0]); //输出1
	 }

	 public static void modify (int a) {
		a++;
	 }
	 public static void modify (int[] b) {
		b[0] ++;
		b = new int[5];
	 }
 }