Concatenating arrays
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ProblemGiven an array of strings join the strings together to create a single string. Example Output
String[] strings = { "First string is short.",
"Second string is a bit longer",
"Third sting is even more longererer" };
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More with Arrays | |
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SolutionThere are multiple ways of joining the strings together. The simplest way, using +, you are probably already familiar with.
String[] strings = { "First string is short.", "Second string is a bit longer", "Third sting is even more longererer" };
String combinedStrings = new String;
for( int i = 0; i < strings.length; i++ )
{
combinedStrings = combinedStrings + strings[i];
}
The String class also offer the method, concat, to concatenate strings
String[] strings = { "First string is short.", "Second string is a bit longer", "Third sting is even more longererer" };
String combinedStrings = new String;
for( int i = 0; i < strings.length; i++ )
{
combinedStrings.concat( strings[i] );
}
Java also offers the StringBuilder class which is best used when building up larger strings
String[] strings = { "First string is short.", "Second string is a bit longer", "Third sting is even more longererer" };
StringBuilder sb = new StringBuilder();
for( int i = 0; i < strings.length; i++ )
{
sb.append( strings[i] );
}
String combinedStrings = sb.toString();
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Code | ||
