/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String multilineContentWithPassword = "line1\nline2\npassword=line3\nline4";
		String multilineContentWithoutPassword = "line1\nline2\nline3\nline4";
		String[] inputs = {multilineContentWithPassword, multilineContentWithoutPassword};
 
		Pattern p = Pattern.compile("(?s)^.*password=.*");
 
		for (String input : Arrays.asList(inputs)) {
			System.out.printf("Handling input string '%s'%n", input);
			System.out.printf("Result : '%s'%n'", p.matcher(input).replaceFirst(""));
		}
	}
}

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