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lecture13 - Computer Science 111 Lecture 13 Arrays CS111...

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CS111: Slides for Prof. Steinberg ʼ s lecture 1 Lecture 13 Computer Science 111 Computer Science 111 Lecture 13 Arrays
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CS111: Slides for Prof. Steinberg ʼ s lecture 2 Lecture 13 Arguments Arguments Zero or more pieces of data can go to a static method when it is called Each argument is an expression in the call foo( x+23 ) If 2 or more, separate by , foo(4, x+23, “foo”) Even if 0 arguments still need parens foo( )
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CS111: Slides for Prof. Steinberg ʼ s lecture 3 Lecture 13 To Do a Call To Do a Call Compute values of arguments Find code for method Create invocation record for called method Initialize parameters of called method using argument values
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CS111: Slides for Prof. Steinberg ʼ s lecture 4 Lecture 13 Invocation Record Invocation Record Memory reserved for info needed by a given call (invocation) of a method Where are we in the code Parameter values Other variables as they are declared Other information
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CS111: Slides for Prof. Steinberg ʼ s lecture 5 Lecture 13 Arguments Arguments See simpleParamExample1.java See simpleParamExample2.java
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CS111: Slides for Prof. Steinberg ʼ s lecture 6 Lecture 13 Return Value Return Value Zero or one piece of data can come back from a static method when it returns If zero (a void method), the call acts as a statement, I.e. has no value If one, the call acts as an expression, I.e.
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