//Object類的equals方法,跟==效果相同,注意String類重寫了equals方法,重寫後判斷的是對象的實際值是否一致,若一直返回ture,否則false.下面程序只驗證了Object方法的equals()方法的實現
class Girl {
private float height ;
private float weight ;
public Girl(float h,float w) {
this.height = h ;
this.weight = w ;
}
}
public class TestEquals {
public static void main(String args[]) {
Girl g1 = new Girl(1.70f,45.0f);
Girl g2 = new Girl(1.70f,45.0f);
System.out.println(g1==g2);//false,判斷對象引用是否相同
System.out.println(g1.equals(g2));//false,因爲沒有重寫Object的equals方法
}
}