I’m trying to compile my Java Project in Eclipse IDE, but my Maven Compile failed with Source option 5 is no longer supported. Use 7 or later. error. I checked my build path & I can run standalone Java program but ...
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How to read numeric or all type of column as String. I want all my column data as String, So I’m trying to get the cell value using cell.getStringCellValue() , Its not working is there any other option in Apache POI ...
While converting Java Map to JSON using Jackson ObjectMapper I’m getting this error. My map have one null key(As per my use case I need null key). Is there a way to fix this issue without removing null key ? com.fasterxml.jackson.core.JsonGenerationException: ...
I’m trying to parse a excel file using apache poi but I’m getting the error “org.apache.poi.openxml4j.exceptions.NotOfficeXmlFileException: The supplied data appears to be a raw XML file. Formats such as Office 2003 XML are not supported“. I research & found xls ...
I want to split the string by space, below code not working. I’m new to Java. Please share the good tutorials for beginners. String s1 = “Welcome to Hello World Java”; String[] str = s1.split(” “);
Tamil text not displayed in image created using BufferedImage & Graphics2D. I set “Latha” font instead of “Arial” but still its displaying text as boxes. Please help me why Tamil font not supported in Graphics2D BufferedImage img = ImageIO.read(new File(“template.jpg”)); Graphics2D g2d ...
I’m getting below error while split the string by “\” even I used with escape “\\” but still getting the exception Exception in thread “main” java.util.regex.PatternSyntaxException: Unexpected internal error near index 1 \ at java.base/java.util.regex.Pattern.error(Pattern.java:2029) at java.base/java.util.regex.Pattern.compile(Pattern.java:1790) at java.base/java.util.regex.Pattern.<init>(Pattern.java:1431) at java.base/java.util.regex.Pattern.compile(Pattern.java:1070)
I’m trying to automate my trading strategy. I’m new to programming languages. Just leaned few things in Java and developed the program. I’m getting below error while parsing my timeseries data, Please some one help me com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of ...
Getting below error while parsing huge sized json file. I validated the file in online its valid file only but still getting this issue com.fasterxml.jackson.core.io.JsonEOFException: Unexpected end-of-input within/between Object entries at [Source: (File); line: 1, column: 9546445] at com.fasterxml.jackson.core.base.ParserMinimalBase._reportInvalidEOF(ParserMinimalBase.java:618) at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._skipColon2(UTF8StreamJsonParser.java:3096)
I’m trying to replace all the question (?) mark in my document String s = “xyz?”; s.replaceAll(“?”.””); using sample code mentioned above but getter java.util.regex.PatternSyntaxException: Dangling meta character ‘?’ near index 0 what I’m doing wrong here ? why I’m getting this error ? java.util.regex.PatternSyntaxException: ...