英文:
Is there any way to get Boolean's string binding rather than its boolean binding in Java
问题
以下是您需要翻译的内容：
这是我需要做的：public void verifyConditionSatisfies(Boolean condition) {if (condition) {System.out.println(condition.toString() + "满足条件"); // 这部分是我需要获取其字符串绑定的部分，而不是布尔值的评估版本} else {System.out.println(condition.toString() + "不满足条件");}}以下是预期的用法：verifyConditionSatisfies(10 > 9)应该评估为"10 > 9 满足条件"
英文:
Here's what I need to do:
public void verifyConditionSatisfies( Boolean condition){if (condition) {System.out.println(condition.toString()+ "satisfies)//This is the part i need to get its String binding, not boolean evaluated version}else{System.out.println(condition.toString()+ " does not satisfy)}}
Here's an intended usage:
verifyConditionSatisfies(10>9)
should evaluate as
"10>9 satisfies"
答案1
得分: 1
正如评论中所提到的，无法将布尔表达式10>9直接转换为字符串。将表达式作为字符串"10>9"提供可能更容易实现。
以下是一种非常规的实现方式：
public class BooleanEval {public static void main(String[] args) throws ScriptException {System.out.println(new BooleanEvaluation(""10>9""));System.out.println(new BooleanEvaluation(""25<3""));}public static class BooleanEvaluation {private static final ScriptEngine javaScriptEngine = new ScriptEngineManager().getEngineByName("JavaScript");private String expression;private boolean evaluation;public BooleanEvaluation(String eval) throws ScriptException {this.expression = eval;this.evaluation = Boolean.parseBoolean(String.valueOf(javaScriptEngine.eval(expression)));}@Overridepublic String toString() {String evalString = evaluation ? "满足" : "不满足";return expression + " " + evalString;}}}
输出：
"10>9" 满足"25<3" 不满足
英文:
As mentioned in comments, getting a boolean expression 10>9 as a String is not possible. Giving the expression as a String "10>9" might be easier to do it.
Here is an unorthodox way to do it:
public class BooleanEval {public static void main(String[] args) throws ScriptException {System.out.println(new BooleanEvaluation("10>9"));System.out.println(new BooleanEvaluation("25<3"));}public static class BooleanEvaluation {private static final ScriptEngine javaScriptEngine = new ScriptEngineManager().getEngineByName("JavaScript");private String expression;private boolean evaluation;public BooleanEvaluation(String eval) throws ScriptException {this.expression = eval;this.evaluation = Boolean.parseBoolean(String.valueOf(javaScriptEngine.eval(expression)));}@Overridepublic String toString() {String evalString = evaluation ? "satisfies" : "does not satisfy";return expression + " " + evalString;}}}
Outputs:
10>9 satisfies25<3 does not satisfy
答案2
得分: 0
以下是翻译好的内容：
这个
verifyConditionSatisfies(10 > 9);
被有效地评估为
Boolean temp = 10 > 9;verifyConditionSatisfies(temp);
该方法不知道其参数是如何计算的。
字符序列1、0、>、9仅存在于源代码中。
因此，答案是“不”。
英文:
This
verifyConditionSatisfies(10>9);
is effectively evaluated as
Boolean temp = 10 > 9;verifyConditionSatisfies(temp);
The method is unaware of how its argument was calculated.
The character sequence 1, 0, >, 9 exists only in source code.
So, the answer is "no".
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