tasks a-s

Task/Scope-modifiers/Java/scope-modifiers.java

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+public //any class may access this member directly
+
+protected //only this class, subclasses of this class,
+//and classes in the same package may access this member directly
+
+private //only this class may access this member directly
+
+static //for use with other modifiers
+//limits this member to one reference for the entire JVM
+
+//adding no modifier (sometimes called "friendly") allows access to the member by classes in the same package
+
+// Modifier    | Class | Package | Subclass | World
+// ------------|-------|---------|----------|-------
+// public      |  Y    |    Y    |    Y     |   Y
+// protected   |  Y    |    Y    |    Y     |   N
+// no modifier |  Y    |    Y    |    N     |   N
+// private     |  Y    |    N    |    N     |   N
+
+//method parameters are available inside the entire method
+
+//Other declarations follow lexical scoping,
+//being in the scope of the innermost set of braces ({}) to them.
+//You may also create local scopes by surrounding blocks of code with braces.
+
+public void function(int x){
+   //can use x here
+   int y;
+   //can use x and y here
+   {
+      int z;
+      //can use x, y, and z here
+   }
+   //can use x and y here, but NOT z
+}