Java AutoCloseable资源类

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public class Main {

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  public static void main(String[] args) {

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    // Its close() method will be called automatically *//**from NowJava.com - 时代Java**/

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    try (MyResource mr = new MyResource(2, false)) {

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      mr.use();

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      mr.use();

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    }

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    try (MyResource mr = new MyResource(2, true)) {

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      mr.use();

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      mr.use();

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    }

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  }

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}

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class MyResource implements AutoCloseable {

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    private int score;

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    private boolean errorOut;

/** 来 自 nowjava.com**/

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    public MyResource(int level, boolean exceptionOnClose) {

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        this.score = level;

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        this.errorOut = exceptionOnClose;

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        System.out.println("Creating MyResource. Level = " + level);

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    }

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    public void use() {

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        if (score <= 0) {

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            throw new RuntimeException("Low in level.");

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        }

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        System.out.println("Using MyResource level " + this.score);

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        score--;

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    }

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    @Override

/**代码未完, 请加载全部代码(NowJava.com).**/