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importjava.io.*;importjava.util.*;importjava.text.*;importjava.math.*;importjava.util.regex.*;importjava.lang.reflect.*;finalclassSingleton{publicStringstr="Hello I am a singleton! Let me say hello world to you";privatestaticSingletonsingleton;privateSingleton(){}publicstaticSingletongetSingleInstance(){if(singleton==null)singleton=newSingleton();returnsingleton;}}
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Java Singleton Pattern
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