Java中的是值传递还是引用传递

package com.dairui.chars;

public class StringDemo {
	public static void main(String[] args) {
		String string = "hello";
		System.out.println(string);
		change(string);
		System.out.println(string);// 执行后string的还是hello

		// 基本数据类型
		int i = 2;
		System.out.println(i);
		changeInt(i);
		System.out.println(i);

		// StringBuffer
		StringBuffer stringBuffer = new StringBuffer("dair");
		System.out.println(stringBuffer);
		changeStringBuffer(stringBuffer);
		System.out.println(stringBuffer);

		// 引用类型：接口、数组、类、集合
		int[] array = { 1, 2, 3, 4 };
		System.out.println("array[1]" + array[1]);
		changeArray(array);
		System.out.println("array[1]" + array[1]);

	}

	public static void change(String string) {
		string = string + "world";
		System.out.println(string);
	}

	public static void changeInt(int i) {
		i = 10;
		System.out.println(i);

	}

	public static void changeStringBuffer(StringBuffer stringBuffer) {
		stringBuffer.append("ui");
		System.out.println(stringBuffer);
	}

	public static void changeArray(int[] is) {
		is[1] = 10;
		System.out.println(is[1]);
	}
}

执行结果：