diff options
| author | Yuchen Pei <me@ypei.me> | 2017-11-29 12:30:41 +0100 |
|---|---|---|
| committer | Yuchen Pei <me@ypei.me> | 2017-11-29 12:30:41 +0100 |
| commit | a000308104aab27c2dde9a306f1bc654b2db4806 (patch) | |
| tree | aecc628e14c1628b5714281437aba18680cdc27b /projects/12/StringTest | |
first commit
Diffstat (limited to 'projects/12/StringTest')
| -rw-r--r-- | projects/12/StringTest/Main.jack | 83 | ||||
| -rw-r--r-- | projects/12/StringTest/StringTestOutput.gif | bin | 0 -> 8126 bytes |
2 files changed, 83 insertions, 0 deletions
diff --git a/projects/12/StringTest/Main.jack b/projects/12/StringTest/Main.jack new file mode 100644 index 0000000..2848548 --- /dev/null +++ b/projects/12/StringTest/Main.jack @@ -0,0 +1,83 @@ +// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/12/StringTest/Main.jack
+
+/** Test program for the OS String class. */
+class Main {
+
+ /** Performs various string manipulations and displays their results. */
+ function void main() {
+ var String s;
+ var String i;
+
+ let s = String.new(0); // a zero-capacity string should be supported
+ do s.dispose();
+
+ let s = String.new(6); // capacity 6, make sure that length 5 is displayed
+ let s = s.appendChar(97);
+ let s = s.appendChar(98);
+ let s = s.appendChar(99);
+ let s = s.appendChar(100);
+ let s = s.appendChar(101);
+ do Output.printString("new,appendChar: ");
+ do Output.printString(s); // new, appendChar: abcde
+ do Output.println();
+
+ let i = String.new(6);
+ do i.setInt(12345);
+ do Output.printString("setInt: ");
+ do Output.printString(i); // setInt: 12345
+ do Output.println();
+
+ do i.setInt(-32767);
+ do Output.printString("setInt: ");
+ do Output.printString(i); // setInt: -32767
+ do Output.println();
+
+ do Output.printString("length: ");
+ do Output.printInt(s.length()); // length: 5
+ do Output.println();
+
+ do Output.printString("charAt[2]: ");
+ do Output.printInt(s.charAt(2)); // charAt[2]: 99
+ do Output.println();
+
+ do s.setCharAt(2, 45);
+ do Output.printString("setCharAt(2,'-'): ");
+ do Output.printString(s); // setCharAt(2,'-'): ab-de
+ do Output.println();
+
+ do s.eraseLastChar();
+ do Output.printString("eraseLastChar: ");
+ do Output.printString(s); // eraseLastChar: ab-d
+ do Output.println();
+
+ let s = "456";
+ do Output.printString("intValue: ");
+ do Output.printInt(s.intValue()); // intValue: 456
+ do Output.println();
+
+ let s = "-32123";
+ do Output.printString("intValue: ");
+ do Output.printInt(s.intValue()); // intValue: -32123
+ do Output.println();
+
+ do Output.printString("backSpace: ");
+ do Output.printInt(String.backSpace()); // backSpace: 129
+ do Output.println();
+
+ do Output.printString("doubleQuote: ");
+ do Output.printInt(String.doubleQuote());// doubleQuote: 34
+ do Output.println();
+
+ do Output.printString("newLine: ");
+ do Output.printInt(String.newLine()); // newLine: 128
+ do Output.println();
+
+ do i.dispose();
+ do s.dispose();
+
+ return;
+ }
+}
diff --git a/projects/12/StringTest/StringTestOutput.gif b/projects/12/StringTest/StringTestOutput.gif Binary files differnew file mode 100644 index 0000000..5c2932c --- /dev/null +++ b/projects/12/StringTest/StringTestOutput.gif |
