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Start your free trialBinyamin Friedman
14,615 PointsCompiler Errors on For Loop
This is the error.
./com/example/Blog.java:16: error: '(' or '[' expected for(BlogPost blogPost : mPosts) { ^ ./com/example/Blog.java:16: error: ')' expected for(BlogPost blogPost : mPosts) { ^ ./com/example/Blog.java:16: error: not a statement for(BlogPost blogPost : mPosts) { ^ ./com/example/Blog.java:16: error: ';' expected for(BlogPost blogPost : mPosts) { ^ ./com/example/Blog.java:17: error: cannot find symbol results.add(blogPost.getAuthor()); ^ symbol: variable blogPost location: class Blog Note: JavaTester.java uses unchecked or unsafe operations. Note: Recompile with -Xlint:unchecked for details. 5 errors
package com.example;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class BlogPost implements Comparable<BlogPost>, Serializable {
private String mAuthor;
private String mTitle;
private String mBody;
private String mCategory;
private Date mCreationDate;
public BlogPost(String author, String title, String body, String category, Date creationDate) {
mAuthor = author;
mTitle = title;
mBody = body;
mCategory = category;
mCreationDate = creationDate;
}
public int compareTo(BlogPost other) {
if (equals(other)) {
return 0;
}
return mCreationDate.compareTo(other.mCreationDate);
}
public String[] getWords() {
return mBody.split("\\s+");
}
public List<String> getExternalLinks() {
List<String> links = new ArrayList<String>();
for (String word : getWords()) {
if (word.startsWith("http")) {
links.add(word);
}
}
return links;
}
public String getAuthor() {
return mAuthor;
}
public String getTitle() {
return mTitle;
}
public String getBody() {
return mBody;
}
public String getCategory() {
return mCategory;
}
public Date getCreationDate() {
return mCreationDate;
}
}
package com.example;
import java.util.Set;
import java.util.TreeSet;
import java.util.List;
public class Blog {
List<BlogPost> mPosts;
public Blog(List<BlogPost> posts) {
mPosts = posts;
}
public Set<String> getAllAuthors() {
Set<String> results = new TreeSet<String>
for(BlogPost blogPost : mPosts) {
results.add(blogPost.getAuthor());
}
return results;
}
public List<BlogPost> getPosts() {
return mPosts;
}
}
2 Answers
james south
Front End Web Development Techdegree Graduate 33,271 Pointsthis line:
Set<String> results = new TreeSet<String>
should be
Set<String> results = new TreeSet<String>();
Anders Björkland
7,481 PointsHi! Looks like you droped a couple of these (); at line 15. It doesn't call the TreeSet constructor as it is right now.
Binyamin Friedman
14,615 PointsGetting rid of that () just causes more errors.