Java 格式化双精度型值
格式化双精度型值
实例源码：
源代码：
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/* 2
*来 自3
N o w J a v a . c o m4
*/5
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import java.util.Calendar;7
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import java.util.Locale;9
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public class TestFormat {12
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public static void main(String[] args) {15
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long n = 461012;17
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System.out.format("%d%n", n);19
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System.out.format("%08d%n", n);21
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System.out.format("%+8d%n", n);23
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System.out.format("%,8d%n", n);25
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System.out.format("%+,8d%n%n", n);27
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double pi = Math.PI;30
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System.out.format("%f%n", pi);32
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System.out.format("%.3f%n", pi);/** from N o w J a v a . c o m**/34
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System.out.format("%10.3f%n", pi);36
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System.out.format("%-10.3f%n", pi);38
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System.out.format(Locale.FRANCE, "%-10.4f%n%n", pi);40
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Calendar c = Calendar.getInstance();43
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System.out.format("%tB %te, %tY%n", c, c, c);45
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System.out.format("%tl:%tM %tp%n", c, c, c);47
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System.out.format("%tD%n", c);49
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}51
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}53
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/*56
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* Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.58
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*60
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* Redistribution and use in source and binary forms, with or without62
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* modification, are permitted provided that the following conditions64
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* are met:66
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*68
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* - Redistributions of source code must retain the above copyright70
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* notice, this list of conditions and the following disclaimer.72
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*74
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* - Redistributions in binary form must reproduce the above copyright76
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* notice, this list of conditions and the following disclaimer in the78
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* documentation and/or other materials provided with the distribution.80
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*82
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* - Neither the name of Oracle or the names of its84
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* contributors may be used to endorse or promote products derived86
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* from this software without specific prior written permission.88
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*90
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS92
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,94
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR96
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR98
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,100
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