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Author Question: Analyze the following code:public class Test { public static void main(String[] args) {Object a1 = ... (Read 72 times)

captainjonesify

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  • Posts: 543
Analyze the following code:

public class Test {
public static void main(String[] args) {
Object a1 = new A();
Object a2 = new Object();
System.out.println(a1);
System.out.println(a2);
}
}

class A {
int x;

public String toString() {
return "A's x is " + x;
}
}

◦ When executing System.out.println(a2), the toString() method in the Object class is invoked.
◦ When executing System.out.println(a1), the toString() method in the A class is invoked.
◦ When executing System.out.println(a1), the toString() method in the Object class is invoked.
◦ The program cannot be compiled, because System.out.println(a1) is wrong and it should be replaced by System.out.println(a1.toString());


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Marked as best answer by captainjonesify on May 6, 2020

jennafosdick

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captainjonesify

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  • Posts: 543
Reply 2 on: May 6, 2020
YES! Correct, THANKS for helping me on my review


nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
:D TYSM

 

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