/
CalcView.java
executable file
·66 lines (48 loc) · 1.35 KB
/
CalcView.java
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package com.jsfsample.calc.plain;
import com.jsfsample.calc.Calc;
import javax.annotation.PostConstruct;
import javax.faces.view.ViewScoped;
import javax.inject.Named;
import java.io.Serializable;
import java.util.*;
import static com.jsfsample.FaceUtils.*;
@Named
@ViewScoped
public class CalcView implements Serializable {
private Calc calc;
private List<Calc> results;
@PostConstruct
private void postConstruct() {
results = new LinkedList<>();
reset();
}
public Calc getCalc() {
return calc;
}
public void setCalc(Calc calc) {
this.calc = calc;
}
public List<Calc> getResults() {
return results;
}
public void setResults(List<Calc> results) {
this.results = results;
}
public void doCalculation() {
long l = calc.getLeft();
long r = calc.getRight();
long a = l + r;
if (l % 2 == 0) flash("left", "左辺 " + l + " は偶数です");
if (r % 2 != 0) flash("right", "右辺 " + r + " は奇数です");
results.add(0, new Calc(l, r, a));
reset();
}
private void reset() {
Random rand = new Random(System.currentTimeMillis());
calc = new Calc(
Math.abs(rand.nextInt() % 10) + 1,
Math.abs(rand.nextInt() % 10) + 1,
0
);
}
}