What is a final class ?

1121

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Explain inner classes ?

1093

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Can static method access instance variables ?

1089

---

What are the methods of object class ?

1023

---

What are different types of inner classes ?

1020

---

What is stringjoiner ?

933

---

Difference between final and effectively final ?

1051

---

Difference between abstract and concrete class ?

1120

---

Can we create an object if a class doesn't have any constructor ( not even the default provided by constructor ) ?

1051

---

Can we access instance variables within static methods ?

1058

---

What is the use of optional ?

1007

---

Difference between doublesummarystatistics, intsummarystatistics and longsummarystatistics ?

961

---

Difference between final and effectively final ? Why is effectively final even required ?

954

---

Similarity and difference between static block and static method ?

893

---

Difference between class#getinstance() and new operator ?

1178

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