'How can I make Java print quotes, like "Hello"?

How can I make Java print "Hello"?

When I type System.out.print("Hello"); the output will be Hello. What I am looking for is "Hello" with the quotes("").

javaescapingdouble-quotessystem.out


Solution 1:[1]

char ch='"';

System.out.println(ch + "String" + ch);

Or

System.out.println('"' + "ASHISH" + '"');

Solution 2:[2]

Escape double-quotes in your string: "\"Hello\""

More on the topic (check 'Escape Sequences' part)

Solution 3:[3]

You can do it using a unicode character also

System.out.print('\u0022' + "Hello" + '\u0022');

Solution 4:[4]

Adding the actual quote characters is only a tiny fraction of the problem; once you have done that, you are likely to face the real problem: what happens if the string already contains quotes, or line feeds, or other unprintable characters?

The following method will take care of everything:

public static String escapeForJava( String value, boolean quote )
{
    StringBuilder builder = new StringBuilder();
    if( quote )
        builder.append( "\"" );
    for( char c : value.toCharArray() )
    {
        if( c == '\'' )
            builder.append( "\\'" );
        else if ( c == '\"' )
            builder.append( "\\\"" );
        else if( c == '\r' )
            builder.append( "\\r" );
        else if( c == '\n' )
            builder.append( "\\n" );
        else if( c == '\t' )
            builder.append( "\\t" );
        else if( c < 32 || c >= 127 )
            builder.append( String.format( "\\u%04x", (int)c ) );
        else
            builder.append( c );
    }
    if( quote )
        builder.append( "\"" );
    return builder.toString();
}

Solution 5:[5]

System.out.println("\"Hello\"");

Solution 6:[6]

System.out.println("\"Hello\"")

Solution 7:[7]

There are two easy methods:

  1. Use backslash \ before double quotes.
  2. Use two single quotes instead of double quotes like '' instead of "

For example:

System.out.println("\"Hello\"");                       
System.out.println("''Hello''");

Solution 8:[8]

Take note, there are a few certain things to take note when running backslashes with specific characters.

System.out.println("Hello\\\");

The output above will be:

Hello\

System.out.println(" Hello\"  ");

The output above will be:

Hello"

Solution 9:[9]

Use Escape sequence.

\"Hello\"

This will print "Hello".

Solution 10:[10]

you can use json serialization utils to quote a java String.

like this:

public class Test{
   public static String quote(String a){
       return JSON.toJsonString(a)
   } 
}

if input is:hello output will be: "hello"

if you want to implement the function by self:

it maybe like this:

public static String quotes(String origin) {

        // ??? \ -> \\ ??????: \\ => \\\\" ?????quote??: \\\\ ==> \\\\\\\\"
        origin = origin.replaceAll("\\\\", "\\\\\\\\");
        //  " -> \" regExt: \" => \\\" quote to param: \\\" ==> \\\\\\\"
        origin = origin.replaceAll("\"", "\\\\\\\"");

        // carriage return: -> \n \\\n
        origin = origin.replaceAll("\\n", "\\\\\\n");

        // tab -> \t
        origin = origin.replaceAll("\\t", "\\\\\\t");
        return origin;
    }

the above implementation will quote escape character in string but exclude the " at the start and end.

the above implementation is incomplete. if other escape character you need , you can add to it.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Vasil Lukach
Solution 2 Nikita Rybak
Solution 3 mdml
Solution 4 Mike Nakis
Solution 5 TylerH
Solution 6 mdml
Solution 7 asteri
Solution 8 TylerH
Solution 9 Logan
Solution 10 user3033075

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