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Integer.parseInt

时间: 2024-06-06 13:08:14 浏览: 52

调用parseInt方法的异常处理语句-清华大学java 教学PPT 课程五

调用parseInt()方法的异常处理语句 String str = "123a"; try { int i = Integer.parseInt(str);//调用声明抛出异常的方法 }catch(NumberFormatException e) { //捕获parseInt()方法声明的异常对象 System.out.println(str+"字符串不能转换为整数"); }catch (Exception e) { //捕获所有异常对象，此例在此不会被捕获 e.printStackTrace(); //显示异常栈跟踪信息 }finally{ System.out.println("finally方法执行"); }

The method Integer.parseInt() is a static method in the Integer class of Java that converts a string value to an integer value. The method takes a string as an argument and returns an int value. It is commonly used to convert user input (which is usually in string format) to integer values that can be processed by the program. If the string is not a valid integer, the method throws a NumberFormatException.

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