JavaでString文字列が等しいかどうかの判定

public class Test {

    public static void main(String[] args) {
        String value1 = "abc123";
        String value2 = "abc123";
        String value3 = new String("abc123");
        String value4 = new String("abc123"); 
        
        System.out.print("【\"abc123\" == \"abc123\"】 : ");
        System.out.println(value1 == value2);
        
        System.out.print("【\"abc123\" == new String(\"abc123\")】 : ");
        System.out.println(value2 == value3);
        
        System.out.print("【new String(\"abc123\") == new String(\"abc123\")】 : ");
        System.out.println(value3 == value4);
        
        System.out.print("【\"abc123\".equals(\"abc123\")】 : ");
        System.out.println(value1.equals(value2));
        System.out.print("【\"abc123\".equals(new String(\"abc123\"))】 : ");
        System.out.println(value2.equals(value3));
        System.out.print("【new String(\"abc123\").equals(new String(\"abc123\"))】 : ");
        System.out.println(value3.equals(value4));
    }

}