equalstest.java

java对象 创建新对象访问和设置类变量和实例变量 对象引用

class EqualsTest {
    public static void main(String[] arguments) {
        String str1, str2;
        str1 = "Free the bound periodicals.";
        str2 = str1;

        System.out.println("String1: " + str1);
        System.out.println("String2: " + str2);
        System.out.println("Same object? " + (str1 == str2));

        str2 = new String(str1);

        System.out.println("String1: " + str1);
        System.out.println("String2: " + str2);
        System.out.println("Same object? " + (str1 == str2));
        System.out.println("Same value? " + str1.equals(str2));
    }
}