執行下列 Java 程式後，產生的輸出為何？ public class BoolTest{ public static void main(String [] args){ int result = 0; Boolean b1 = new Boolean("True"); Boolean b2 = new Boolean("TRUE"); Boolean b3 = new Boolean("False"); if(b1 == b2) result = 1; if(b1.equals(b2)) result += 1; if(b2 != b3) result += 1; if(!b2.equals(b3)) result += 1; System.out.println(result); } }
A0
B1
C2
D3正確答案
答案與詳解
