// String のテスト

class Strtest1
{
	public static void main( String[] args )
	{
		String str1 = new String("Hello");
		String str2 = "Hello";
		String str3 = new String("Hello");
		String str4 = "Hello";

		System.out.println("String str1 = new String(\"Hello\");");
		System.out.println("String str2 = \"Hello\";");
		System.out.println("String str3 = new String(\"Hello\");");
		System.out.println("String str4 = \"Hello\";");
		System.out.println("----------");
		if( str1.equals(str2) )
			System.out.println("str1.equals(str2) は真。");
		else
			System.out.println("str1.equals(str2) は偽。");
		if( str1 == str2 )
			System.out.println("str1 == str2 は真。");
		else
			System.out.println("str1 == str2 は偽。");
		if( str1 == str3 )
			System.out.println("str1 == str3 は真。");
		else
			System.out.println("str1 == str3 は偽。");
		if( str2 == str3 )
			System.out.println("str2 == str3 は真。");
		else
			System.out.println("str2 == str3 は偽。");
		if( str2 == str4 )
			System.out.println("str2 == str4 は真。");
		else
			System.out.println("str2 == str4 は偽。");
	}
}
// end of Strtest1.java