The operator - is undefined for the argument type(s) String, int 是什么错误？-慕课网

The operator - is undefined for the argument type(s) String, int 是什么错误？

来源：3-3 Java中的赋值运算符

慕粉3168680

2016-07-19 18:27

System.out.println("three"+"-"+"="+three-one); System.out.println("three"+"*"+"="+three*one); System.out.println("three"+"/"+"="+three/one); 输出的第一行报错：“The operator - is undefined for the argument type(s) String, int”是什么意思啊？？

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3回答

jasonwalk

2016-07-19 18:52:39

已采纳

System.out.println("three"+"-"+"="+(three-one));
System.out.println("three"+"*"+"="+three*one);
System.out.println("three"+"/"+"="+three/one);

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jasonw... 回复慕粉3168...

you will be the best.

2016-07-20 09:55:59

共 2 条回复 >
朕若在你终是臣

2016-07-19 19:02:16

你的“-”号被当做未定义的变量了

0 0
朕若在你终是臣

2016-07-19 19:00:50

有未定义的整形或者字符串变量，注意：如果一个表达式不是已定义的变量，要用英文半角引号引起来

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