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Getting property by String key value

public String getProperty(String key) public String getProperty(String key, String defaultValue) If the key is not found and no default value is provided, null is returned. import java.io.FileInputStream; import java.util.Properties; public class Load {   public static void main (String args[]) throws Exception {     Properties p = new Properties();     p.load(new FileInputStream("colon.txt"));     p.getProperty("foo");   } } //bar //File: test.txt /* foo:bar one two three=four five  six seven eight nine ten */