71. | Can an unreachable object become reachable again? |
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72. | What method must be implemented by all threads? |
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73. | What are synchronized methods and synchronized statements? |
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74. | What is Externalizable? |
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75. | What modifiers are allowed for methods in an Interface? |
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76. | What are some alternatives to inheritance? |
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77. | What does it mean that a method or field is "static"? |
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78. | What is the difference between preemptive scheduling and time slicing? |
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79. | What is the catch or declare rule for method declarations? |
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80. | Is Empty .java file a valid source file? |
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