asmhatre/java-core-examples
1
0
Fork 0
Code Activity

strings: Java Strings deep dive companion code (pool/intern, indy concat vs StringBuilder JMH, text blocks, string templates)

Browse Source 
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01KqJyCidz3ZgRyHABv2GVJh
This commit is contained in:
Claude
2026-09-30 19:06:34 +00:00
parent 97e7352f45
commit 366579f478
22 changed files with 563 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
strings/output/04-javap-indy-vs-inline.txt
+25
View File
@@ -0,0 +1,25 @@
$ javac ConcatShapes.java && javap -c -p ConcatShapes (method one)
public static java.lang.String one(java.lang.String, int);
Code:
0: aload_0
1: iload_1
2: invokedynamic #7, 0 // InvokeDynamic #0:makeConcatWithConstants:(Ljava/lang/String;I)Ljava/lang/String;
7: areturn
$ javac -XDstringConcat=inline ConcatShapes.java && javap -c -p ConcatShapes (method one)
public static java.lang.String one(java.lang.String, int);
Code:
0: new #7 // class java/lang/StringBuilder
3: dup
4: invokespecial #9 // Method java/lang/StringBuilder."<init>":()V
7: ldc #10 // String user=
9: invokevirtual #12 // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
12: aload_0
13: invokevirtual #12 // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
16: ldc #16 // String n=
18: invokevirtual #12 // Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
21: iload_1
22: invokevirtual #18 // Method java/lang/StringBuilder.append:(I)Ljava/lang/StringBuilder;
25: invokevirtual #21 // Method java/lang/StringBuilder.toString:()Ljava/lang/String;
28: areturn