Big help of idea, to create a main class but errors, you need to create a String class is how to ret-CodePudding

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Big help of idea, to create a main class but errors, you need to create a String class is how to ret

Time：09-16

CodePudding user response:

refer to the building a small application apes - response:

JDK base package didn't import your environment that is not installed JDK

CodePudding user response:

There is something wrong with the environment,

CodePudding user response:

Project environment without the JDK to

Did not create a new, related local JDK installation can
If the local not installed, go online to download a JDK installation

CodePudding user response:

Not set the JDK