Hey, I'm trying to create a Application Window using GUI designer plugin in eclipse but it show me the following error

Question

Description Resource    Path    Location    Type
EventQueue cannot be resolved   hello.java  /Namaste/src    line 13 Java Problem
JFrame cannot be resolved to a type hello.java  /Namaste/src    line 7  Java Problem
JFrame cannot be resolved to a type hello.java  /Namaste/src    line 17 Java Problem
JFrame cannot be resolved to a type hello.java  /Namaste/src    line 36 Java Problem
JFrame cannot be resolved to a type hello.java  /Namaste/src    line 36 Java Problem
JFrame cannot be resolved to a type hello.java  /Namaste/src    line 37 Java Problem
JFrame cannot be resolved to a type hello.java  /Namaste/src    line 38 Java Problem
JFrame cannot be resolved to a variable hello.java  /Namaste/src    line 38 Java Problem

Must declare a named package because this compilation unit is associated to the named module 'Namaste'  hello.java  /Namaste/src    line 1  Java Problem
The package java.awt is not accessible  hello.java  /Namaste/src    line 1  Java Problem
The type javax.swing.JFrame is not accessible   hello.java  /Namaste/src    line 3  Java Problem