37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
import java.awt.Rectangle;
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public class ObjectVarsAsParameters
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{ public static void main(String[] args)
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{ go();
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}
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public static void go()
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{ Rectangle r1 = new Rectangle(0,0,5,5);
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System.out.println("In method go. r1 " + r1 + "\n");
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// could have been
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//System.out.prinltn("r1" + r1.toString());
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r1.setSize(10, 15);
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System.out.println("In method go. r1 " + r1 + "\n");
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alterPointee(r1);
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System.out.println("In method go. r1 " + r1 + "\n");
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alterPointer(r1);
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System.out.println("In method go. r1 " + r1 + "\n");
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}
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public static void alterPointee(Rectangle r)
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{ System.out.println("In method alterPointee. r " + r + "\n");
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r.setSize(20, 30);
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System.out.println("In method alterPointee. r " + r + "\n");
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}
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public static void alterPointer(Rectangle r)
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{ System.out.println("In method alterPointer. r " + r + "\n");
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r = new Rectangle(5, 10, 30, 35);
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System.out.println("In method alterPointer. r " + r + "\n");
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}
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}
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// From https://www.cs.utexas.edu/~scottm/cs307/javacode/codeSamples/ObjectVarsAsParameters.java
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