Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
179 views
in Technique[技术] by (71.8m points)

How to print an object from an object array in java?

This is an example of my object array.

Ball[] Array= {BallGrid[4], BallGrid[5]};

This is how I tried printing it out but the output was finalproject.Ball@1dcc2a3.

for(Ball value : Array){

    System.out.println(value);

}

How would I print out Array[0] so the value remains "BallGrid[4]"?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You have to override the toString() method in the class Ball:

@Override
public String toString() {
    ...
    return someStringHere;
}

where you return the String that you want to use to represent the ball.

Note: Assuming BallGrid is an array (because of BallGrid[4]), you should call it ballGrid following Java naming conventions. And as @mikeyaworski commented, Array should be called array.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...