asmhatreandClaude Sonnet 5.5
f6237d4117
Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b6NtPJHrkan4BXhCAM
33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
$ java -cp target/classes com.ankurm.reflection.ReflectionBasicsDemo
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== 1. Inspect the class ==
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class: com.ankurm.reflection.Account
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public long balance[]
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public void deposit[long]
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public String owner[]
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private String secret[]
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public String[] stack[]
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public String toString[]
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public static int twice[int]
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== 2. Create and call ==
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created: Account[alice, 50]
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after deposit(25): Account[alice, 75]
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== 3. The exceptions you will meet ==
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wrong name -> NoSuchMethodException: com.ankurm.reflection.Account.nope()
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wrong arg type -> IllegalArgumentException: argument type mismatch
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method threw -> InvocationTargetException wrapping java.lang.IllegalArgumentException: over limit: 5000
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private, no opt-in -> IllegalAccessException: class com.ankurm.reflection.ReflectionBasicsDemo cannot access a member of class com.ankurm.reflection.Account with modifiers "private"
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after setAccessible(true): secret-of-alice
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== 4. What reflection adds to the stack ==
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direct call:
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com.ankurm.reflection.Account.stack
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com.ankurm.reflection.ReflectionBasicsDemo.main
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through Method.invoke:
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com.ankurm.reflection.Account.stack
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jdk.internal.reflect.DirectMethodHandleAccessor.invoke
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java.lang.reflect.Method.invoke
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com.ankurm.reflection.ReflectionBasicsDemo.main
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