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April 11, 2018 09:48
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Java+JavaFX+MVVMでストップウォッチアプリを作成してみた所感 ref: https://qiita.com/YSRKEN/items/d926ac60a25e3168db7a
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// 本家が勧めてくる「高レベル・バインディングAPI」とやら | |
IntegerProperty num1 = new SimpleIntegerProperty(1); | |
IntegerProperty num2 = new SimpleIntegerProperty(2); | |
IntegerProperty num3 = new SimpleIntegerProperty(3); | |
IntegerProperty num4 = new SimpleIntegerProperty(4); | |
NumberBinding total = | |
Bindings.add(num1.multiply(num2),num3.multiply(num4)); | |
System.out.println(total.getValue()); | |
// こう書いた方が可読性が高いのでは?? | |
IntegerProperty num1 = new SimpleIntegerProperty(1); | |
IntegerProperty num2 = new SimpleIntegerProperty(2); | |
IntegerProperty num3 = new SimpleIntegerProperty(3); | |
IntegerProperty num4 = new SimpleIntegerProperty(4); | |
int total; | |
Runnable runner = () -> { | |
total = num1.get() * num2.get() + num3.get() * num4.get(); | |
}; | |
num1.addListener((ob, oldVal, newVal) -> setTotal()); | |
num2.addListener((ob, oldVal, newVal) -> setTotal()); | |
num3.addListener((ob, oldVal, newVal) -> setTotal()); | |
num4.addListener((ob, oldVal, newVal) -> setTotal()); | |
System.out.println(total); |
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