令牌“+”上的java语法错误，AssignmentOperator无效

Question

我得到标题中指定的错误消息。帮忙

public class SumOfTwo {

    public static void main(String args[]) {

        int five = 5;
        int four = 4;
        int sum = five + four;

        System.out.println(five " + " four);
    }

}

Answer 1

要将变量值与String连接起来，需要在它们之间+

改变

System.out.println(five " + " four);

到

System.out.println(five + " + " + four);