Question

I have a question, now i have two classes as following

public class mainClass {
    public static void main(String[] args){
        String st1="st1";
        String st2= "st2";

        System.out.println(st1);
        System.out.println(st2);
        testClass t1=new testClass(st1);
        testClass t2=new testClass(st2);
        System.out.println(t1.getString());
        System.out.println(t2.getString());
    }

}
public class testClass {
    static String testString1;
        public testClass(String a ) {
            testString1=a;
        }
        public String getString(){
            return testString1;
        }
}

---

output

st1
st2
st2
st2

shouldn’t output be the following?

st1
st2
st1
st2

since I created two instances of testClass, each has different input, why am i getting same output??

Answer 1

Your testString1 variable in testClass is declared static, so it will hold the same value across all instances of testClass.

If you want testString1 to hold a unique value for each instance of testClass that gets created, then you need to remove the static declaration.