Java 解析字符串以浮动

欢马劈雪

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解析字符串以浮动

实例源码：

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public class ValueOfDemo {

public static void main(String[] args) {
    /*
    N o w  J a v a  .   c o m
    */

// this program requires two

// arguments on the command line

if (args.length == 2) {

// convert strings to numbers

float a = (Float.valueOf(args[0])).floatValue();

float b = (Float.valueOf(args[1])).floatValue();

// do some arithmetic

System.out.println("a + b = " + (a + b));
            /**
             * 时 代      J a v a   公   众 号 - nowjava.com 提 供 
            **/

System.out.println("a - b = " + (a - b));

System.out.println("a * b = " + (a * b));

System.out.println("a / b = " + (a / b));

System.out.println("a % b = " + (a % b));

} else {

System.out.println("This program "

+ "requires two command-line arguments.");

}

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that the following conditions

* are met:

*   - Redistributions of source code must retain the above copyright

*     notice, this list of conditions and the following disclaimer.

*   - Redistributions in binary form must reproduce the above copyright

*     notice, this list of conditions and the following disclaimer in the

*     documentation and/or other materials provided with the distribution.

*   - Neither the name of Oracle or the names of its

*     contributors may be used to endorse or promote products derived

*     from this software without specific prior written permission.

* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
/**代码未完, 请加载全部代码(NowJava.com).**/

​x
 
​
public class ValueOfDemo {
​
    public static void main(String[] args) {
    /*
    N o w  J a v a  .   c o m
    */
​
​
        // this program requires two 
​
        // arguments on the command line 
​
        if (args.length == 2) {
​
            // convert strings to numbers
​
            float a = (Float.valueOf(args[0])).floatValue();
​
            float b = (Float.valueOf(args[1])).floatValue();
​
​
            // do some arithmetic
​
            System.out.println("a + b = " + (a + b));
            /**
             * 时 代      J a v a   公   众 号 - nowjava.com 提 供 
            **/
​
            System.out.println("a - b = " + (a - b));
​
            System.out.println("a * b = " + (a * b));
​
            System.out.println("a / b = " + (a / b));
​
            System.out.println("a % b = " + (a % b));
​
        } else {
​
            System.out.println("This program "
​
                    + "requires two command-line arguments.");
​
        }
​
    }
​
}
​
​
/*
​
 * Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
​
 *
​
 * Redistribution and use in source and binary forms, with or without
​
 * modification, are permitted provided that the following conditions
​
 * are met:
​
 *
​
 *   - Redistributions of source code must retain the above copyright
​
 *     notice, this list of conditions and the following disclaimer.
​
 *
​
 *   - Redistributions in binary form must reproduce the above copyright
​
 *     notice, this list of conditions and the following disclaimer in the
​
 *     documentation and/or other materials provided with the distribution.
​
 *
​
 *   - Neither the name of Oracle or the names of its
​
 *     contributors may be used to endorse or promote products derived
​
 *     from this software without specific prior written permission.
​
 *
​
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
​
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
​
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
​
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
​
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
/**代码未完, 请加载全部代码(NowJava.com).**/