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Using Java objects 757
The Example class
The following Java code defines the Example class. The Java class Example has one public integer
member,
mPublicInt
. Its constructor initializes
mPublicInt
to 0 or an integer argument. The
class has the following public methods:
public class Example {
public int mPublicInt;
public Example() {
mPublicInt = 0;
}
public Example(int IntVal) {
mPublicInt = IntVal;
}
public String ReverseString(String s) {
StringBuffer buffer = new StringBuffer(s);
return new String(buffer.reverse());
}
public String[] ReverseStringArray(String [] arr) {
String[] ret = new String[arr.length];
for (int i=0; i < arr.length; i++) {
ret[arr.length-i-1]=arr[i];
}
return ret;
}
public int Add(int a, int b) {
return (a+b);
}
public float Add(float a, float b) {
return (a+b);
}
public Example Add(Example a, Example b) {
return new Example(a.mPub b.mPublicInt);
}
Method Description
ReverseString Reverses the order of a string.
ReverseStringArray Reverses the order of elements in an array of strings.
Add Overloaded: Adds and returns two integers or floats or adds the
mPublicInt
members of two Example class objects and returns an
Example class object.
SumArray Returns the sum of the elements in an integer array.
SumObjArray Adds the values of the
mPublicInt
members of an array of Example
class objects and returns an Example class object.
ReverseArray Reverses the order of an array of integers.
Flip Switches a Boolean value.