Claude
65a4bbbbe3
Adds broken/SwitchOnLong.java and regenerates transcripts so every 'runs on 21, 25 and 27' claim has a transcript. Additive commit. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
108 lines
4.8 KiB
Plaintext
108 lines
4.8 KiB
Plaintext
$ javac preview/PrimitiveInstanceof.java (25.0.4.1+1-LTS)
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preview/PrimitiveInstanceof.java:3: error: primitive patterns are a preview feature and are disabled by default.
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if (i instanceof byte b) return i + " fits in a byte: " + b;
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^
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(use --enable-preview to enable primitive patterns)
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1 error
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$ javac preview/PrimitiveInstanceof.java (27+35)
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preview/PrimitiveInstanceof.java:3: error: primitive patterns are a preview feature and are disabled by default.
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if (i instanceof byte b) return i + " fits in a byte: " + b;
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^
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(use --enable-preview to enable primitive patterns)
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1 error
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$ javac broken/SwitchOnLong.java (21.0.10+7-Ubuntu-124.04)
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broken/SwitchOnLong.java:4: error: selector type long is not allowed
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String s = switch (n) { // switch on long: not allowed without the preview
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^
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1 error
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$ javac broken/SwitchOnLong.java (25.0.4.1+1-LTS)
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broken/SwitchOnLong.java:4: error: primitive patterns are a preview feature and are disabled by default.
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String s = switch (n) { // switch on long: not allowed without the preview
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^
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(use --enable-preview to enable primitive patterns)
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1 error
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$ javac broken/SwitchOnLong.java (27+35)
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broken/SwitchOnLong.java:4: error: primitive patterns are a preview feature and are disabled by default.
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String s = switch (n) { // switch on long: not allowed without the preview
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^
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(use --enable-preview to enable primitive patterns)
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1 error
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$ javac --enable-preview --release 25 preview/PrimitiveInstanceof.java && java --enable-preview PrimitiveInstanceof (25.0.4.1+1-LTS)
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100 fits in a byte: 100
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1000 fits in a short: 1000
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100000 needs an int
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0.5 converts to float 0.5 without loss
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0.1 does NOT convert to float without loss
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$ javac --enable-preview --release 27 preview/PrimitiveInstanceof.java && java --enable-preview PrimitiveInstanceof (27+35)
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100 fits in a byte: 100
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1000 fits in a short: 1000
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100000 needs an int
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0.5 converts to float 0.5 without loss
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0.1 does NOT convert to float without loss
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$ javac --enable-preview --release 25 preview/PrimitiveSwitch.java && java --enable-preview PrimitiveSwitch (25.0.4.1+1-LTS)
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OK | other success 204 | client error 404 | something else 500
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yes no
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zero one many (9223372036854775807)
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$ javac --enable-preview --release 27 preview/PrimitiveSwitch.java && java --enable-preview PrimitiveSwitch (27+35)
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OK | other success 204 | client error 404 | something else 500
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yes no
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zero one many (9223372036854775807)
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$ javac --enable-preview --release 25 preview/PrimitiveInRecord.java && java --enable-preview PrimitiveInRecord (25.0.4.1+1-LTS)
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whole degrees: 21
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fractional: 21.5
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not a reading
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$ javac --enable-preview --release 27 preview/PrimitiveInRecord.java && java --enable-preview PrimitiveInRecord (27+35)
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whole degrees: 21
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fractional: 21.5
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not a reading
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$ javac --enable-preview --release 25 preview/PrimitiveEdges.java && java --enable-preview PrimitiveEdges (25.0.4.1+1-LTS)
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0.0 int? true float? true
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-0.0 int? false float? true
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NaN int? false float? true
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1.6777217E7 int? true float? false
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1.0E10 int? false float? true
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3.0 int? true float? true
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1099511627776 instanceof int? false
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Object holding Integer matches int pattern: 42
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Short in Object does not match int
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65 as char: A
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$ javac --enable-preview --release 27 preview/PrimitiveEdges.java && java --enable-preview PrimitiveEdges (27+35)
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0.0 int? true float? true
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-0.0 int? false float? true
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NaN int? false float? true
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1.6777217E7 int? true float? false
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1.0E10 int? false float? true
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3.0 int? true float? true
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1099511627776 instanceof int? false
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Object holding Integer matches int pattern: 42
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Short in Object does not match int
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65 as char: A
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$ javac --enable-preview --release 25 preview/BoxedToNarrower.java && java --enable-preview BoxedToNarrower (25.0.4.1+1-LTS)
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preview/BoxedToNarrower.java:4: error: incompatible types: Integer cannot be converted to byte
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if (boxed instanceof byte b) System.out.println("fits a byte: " + b); // Integer to byte is not allowed
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^
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1 error
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Error: Could not find or load main class BoxedToNarrower
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Caused by: java.lang.ClassNotFoundException: BoxedToNarrower
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$ javac --enable-preview --release 27 preview/BoxedToNarrower.java && java --enable-preview BoxedToNarrower (27+35)
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preview/BoxedToNarrower.java:4: error: incompatible types: Integer cannot be converted to byte
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if (boxed instanceof byte b) System.out.println("fits a byte: " + b); // Integer to byte is not allowed
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^
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1 error
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Error: Could not find or load main class BoxedToNarrower
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Caused by: java.lang.ClassNotFoundException: BoxedToNarrower
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