Java:打印出最后一个引用变量

Question

我有一个包含整数列表的类。我想打印不同组的整数。但即使引用变量不同，我的代码也会打印完全相同的数字。这是我的代码:

import java.util.ArrayList;

public class OrderedIntListUtility {
    public static void printContains(OrderedIntList list) {
        for(int i = 0; i < list.orderedIntegerList.length; i++) {
            System.out.print(list.orderedIntegerList[i]);
        }
    }
}

import java.util.ArrayList;
import java.util.Arrays;

public class OrderedIntList {
    static int[] orderedIntegerList;

    public OrderedIntList(int ... elements) {
        orderedIntegerList = elements;
    }

    public OrderedIntList() {
        orderedIntegerList = null;
    }
}

public class TestOrderedIntList {
    public static void main(String[] args) {
        OrderedIntListUtility operate = new OrderedIntListUtility();
        OrderedIntList listOfA = new OrderedIntList(2,3,1,55,77);
        OrderedIntList listOfB = new OrderedIntList(2,3,5,77);
        operate.printContains(listOfA);
        System.out.println();
        operate.printContains(listOfB);

    }
}

问题是 opera.printContains(listOfA) 打印 listOfB OrderedIntList。我很困惑。它们的变量名不同，对吗？请帮忙。谢谢!

Answer 1

在OrderedIntList类中，您有static int[]orderedIntegerList;将其更改为int[]orderedIntegerList;并且它将起作用。静态意味着在类级别可用，而不是在实例级别