string_test.java

一些JavaAPI测试的源代码(包括一些Java中常用的数据结构类

/*  test .equals & == */
public class String_test{
	public static void main(String[] args)
	{

	
		String s1 = new String("hello");
		String s2 = new String("hello");
		//String s1 = "hello";
		//String s2 = "hello";
		if(s1==s2)
		{
			System.out.println("s1==s2");
		}else if(s1.equals(s2))
		{
			System.out.println("s1.equals(s2)");
		}
		else
		{
			System.out.println("s1!=s2");
		}

	}
	
}