编译时找不到符号

[rebill]

Buildfile: /leetcode-helper/build.xml

compile:
     [echo] Compile source code for problem two_sum ...
    [javac] Compiling 1 source file to /leetcode-helper/build
    [javac] Compiling 1 source file to /leetcode-helper/build
    [javac] /leetcode-helper/src/test/java/com/leetcode/two_sum/Tester.java:80: 错误: 找不到符号
    [javac]         int actual = solution.add(para1, para2);
    [javac]                              ^
    [javac]   符号:   方法 add(int,int)
    [javac]   位置: 类型为Solution的变量 solution
    [javac] 1 个错误

BUILD FAILED
/leetcode-helper/build.xml:108: Compile failed; see the compiler error output for details.

java version "1.8.0_101"

[rebill]

代码改成下面这样可以正常运行

Solution.java

interface Solution {

    // use this Object to print the log (call from slf4j facade)
    static Logger log = LoggerFactory.getLogger(Solution.class);

    public int add(int a, int b);
}

Solution1.java

class Solution1 implements Solution {

    @Override
    public int add(int a, int b) {
        return a + b;
    }

}

也就是说生成代码的时候，少了

public int add(int a, int b);

和

@Override

[morty6688]

666，是这个问题

[helloShen]

接口的函数签名确实是要自己加的。考虑到每个人的习惯都不一样，我解析的话反而容易出错。