0073 javacTask: 源发行版 1.8 需要目标发行版 1.8

今天在编译执行下面这段代码的时候,编译报错:javacTask: 源发行版 1.8 需要目标发行版 1.8

public class Test {
    public static void main(String[] args)  {        String b="b";
        switch(b){
            case "a":
                System.out.println("A");
                break;
            case "b":
                System.out.println("B");
                break;
            case "c":
                System.out.println("C");
                break;
        }
    }
}

参考：http://www.cnblogs.com/cxj20160928/p/5954336.html

1. File–>Project Structure–>Project–>Project SDK 和 Project Language Level
2. File–>Project Structure–>Modules–>Source–>Language Level
3. File–>Settings–>Build, Execution, Deployment–>Compiler–>java compiler–>Project bytecode version 和Per_module bytecode version的Target bytecode version

参考：http://www.cnblogs.com/cxj20160928/p/5954336.html