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public class A {
private static int a;
public static int getA() {
return a;
}
public static void setA(int a) {
A.a = a;
}
public static void main(String[] arg) {
A a1 = new A();
a1.setA(3);
A a2 = new A();
a2.setA(4);
System.out.println("the value of a1 is " + a1.getA());
System.out.println("the value of a2 is " + a2.getA());
}
}