PPT Slide

public class Test {

int x;

static int y = 2;

}//class Test

CLASS

INSTANCES

Test t1 = new Test();

t1.x = 5; // should use accessor

Test t1 = new Test();

t1.x = 3; // should use accessor

public class Test {

int x; // now 5

static int y; // 2

}//class Test

public class Test {

int x; // now 3

static int y; // 2

}//class Test

New class instances (objects) get unique copies

of every member--except for static or “class” members. We can think of static as meaning “only one copy”

int y; // still 2

int y; // still 2

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