public class Test01 {
public static void main(String[] args) {
Integer d=1234;
Integer d1=1234;
System.out.println(d==d1);
System.out.println(d.equals(d1));
System.out.println("——————————————————");
Integer d2=100; //[-128,127]之間的數,仍當作基本類型處理
Integer d3=100;
System.out.println(d2==d3);
System.out.println(d2.equals(d3));
}
}
輸出:
false
true
——————————————————
true
true