Listing 1: CalculatorBean.java:
package calculator;
public class CalculatorBean implements java.io.Serializable {
private float result;
public CalculatorBean(){ this.result = 0.0f; }
public float addAB(float a, float b)
{ this.result = a+b; return result; }
public float subAB(float a, float b)
{this.result = a-b; return result; }
public float mplAB(float a, float b)
{ this.result = a*b; return result;}
public float divAB(float a, float b)
{ this.result = a/b; return result; }
public float getResult(){
return this.result;
}
}
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