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-102
lines changed

‎src/main/java/com/examplehub/basics/io/CharArrayReaderExample.java

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
11
package com.examplehub.basics.io;
22

3-
public class CharArrayReaderExample {
4-
}
3+
public class CharArrayReaderExample {}

‎src/main/java/com/examplehub/basics/io/FileReaderExample.java

Lines changed: 10 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,22 +1,20 @@
11
package com.examplehub.basics.io;
22

33
import com.examplehub.utils.StringUtils;
4-
5-
import java.io.FileNotFoundException;
64
import java.io.FileReader;
75
import java.io.IOException;
86
import java.io.Reader;
97

108
public class FileReaderExample {
11-
public static String read(String filename) throws IOException {
12-
try (Reader reader = new FileReader(filename)) {
13-
char[] chars = new char[1024];
14-
StringBuilder builder = new StringBuilder();
15-
int len;
16-
while ((len = reader.read(chars)) != -1) {
17-
builder.append(StringUtils.toString(chars, 0, len));
18-
}
19-
return builder.toString();
20-
}
9+
public static String read(String filename) throws IOException {
10+
try (Reader reader = new FileReader(filename)) {
11+
char[] chars = new char[1024];
12+
StringBuilder builder = new StringBuilder();
13+
int len;
14+
while ((len = reader.read(chars)) != -1) {
15+
builder.append(StringUtils.toString(chars, 0, len));
16+
}
17+
return builder.toString();
2118
}
19+
}
2220
}

‎src/main/java/com/examplehub/basics/io/FileWriterExample.java

Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,3 @@
11
package com.examplehub.basics.io;
22

3-
public class FileWriterExample {
4-
5-
}
3+
public class FileWriterExample {}

‎src/main/java/com/examplehub/basics/io/StringReaderExample.java

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,4 +1,3 @@
11
package com.examplehub.basics.io;
22

3-
public class StringReaderExample {
4-
}
3+
public class StringReaderExample {}

‎src/main/java/com/examplehub/utils/StringUtils.java

Lines changed: 12 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,19 +1,19 @@
11
package com.examplehub.utils;
22

33
public class StringUtils {
4-
public static String toString(char[] chars, int offset, int len) {
5-
StringBuilder builder = new StringBuilder();
6-
for (int i = offset; i < offset + len; ++i) {
7-
builder.append(chars[i]);
8-
}
9-
return builder.toString();
4+
public static String toString(char[] chars, int offset, int len) {
5+
StringBuilder builder = new StringBuilder();
6+
for (int i = offset; i < offset + len; ++i) {
7+
builder.append(chars[i]);
108
}
9+
return builder.toString();
10+
}
1111

12-
public static String toString(byte[] bytes, int offset, int len) {
13-
StringBuilder builder = new StringBuilder();
14-
for (int i = offset; i < offset + len; ++i) {
15-
builder.append(bytes[i]);
16-
}
17-
return builder.toString();
12+
public static String toString(byte[] bytes, int offset, int len) {
13+
StringBuilder builder = new StringBuilder();
14+
for (int i = offset; i < offset + len; ++i) {
15+
builder.append(bytes[i]);
1816
}
17+
return builder.toString();
18+
}
1919
}

‎src/test/java/com/examplehub/basics/io/CharArrayReaderExampleTest.java

Lines changed: 11 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,21 +1,20 @@
11
package com.examplehub.basics.io;
22

3-
import com.examplehub.utils.StringUtils;
4-
import org.junit.jupiter.api.Test;
3+
import static org.junit.jupiter.api.Assertions.*;
54

5+
import com.examplehub.utils.StringUtils;
66
import java.io.CharArrayReader;
77
import java.io.IOException;
88
import java.io.Reader;
9-
10-
import static org.junit.jupiter.api.Assertions.*;
9+
import org.junit.jupiter.api.Test;
1110

1211
class CharArrayReaderExampleTest {
13-
@Test
14-
void test() throws IOException {
15-
try (Reader reader = new CharArrayReader("hello".toCharArray())){
16-
char[] chars = new char[1024];
17-
int len = reader.read(chars);
18-
assertEquals("hello", StringUtils.toString(chars, 0, len));
19-
}
12+
@Test
13+
void test() throws IOException {
14+
try (Reader reader = new CharArrayReader("hello".toCharArray())) {
15+
char[] chars = new char[1024];
16+
int len = reader.read(chars);
17+
assertEquals("hello", StringUtils.toString(chars, 0, len));
2018
}
21-
}
19+
}
20+
}

‎src/test/java/com/examplehub/basics/io/FileReaderExampleTest.java

Lines changed: 21 additions & 22 deletions
Original file line numberDiff line numberDiff line change
@@ -1,34 +1,33 @@
11
package com.examplehub.basics.io;
22

33
import com.examplehub.utils.StringUtils;
4-
import org.junit.jupiter.api.Test;
5-
64
import java.io.FileReader;
75
import java.io.IOException;
86
import java.io.Reader;
97
import java.nio.charset.StandardCharsets;
8+
import org.junit.jupiter.api.Test;
109

1110
class FileReaderExampleTest {
12-
@Test
13-
void testReadChar() throws IOException {
14-
try (Reader reader = new FileReader("pom.xml", StandardCharsets.UTF_8)) {
15-
int ch;
16-
while ((ch = reader.read()) != -1) {
17-
System.out.print((char)ch);
18-
}
19-
}finally {
20-
System.out.println("read completed");
21-
}
11+
@Test
12+
void testReadChar() throws IOException {
13+
try (Reader reader = new FileReader("pom.xml", StandardCharsets.UTF_8)) {
14+
int ch;
15+
while ((ch = reader.read()) != -1) {
16+
System.out.print((char) ch);
17+
}
18+
} finally {
19+
System.out.println("read completed");
2220
}
21+
}
2322

24-
@Test
25-
void testReadChars() throws IOException{
26-
try(Reader reader = new FileReader("pom.xml", StandardCharsets.UTF_8)) {
27-
char[] buffer = new char[1024];
28-
int len = 0;
29-
while ((len = reader.read(buffer)) != -1) {
30-
System.out.print(StringUtils.toString(buffer, 0, len));
31-
}
32-
}
23+
@Test
24+
void testReadChars() throws IOException {
25+
try (Reader reader = new FileReader("pom.xml", StandardCharsets.UTF_8)) {
26+
char[] buffer = new char[1024];
27+
int len = 0;
28+
while ((len = reader.read(buffer)) != -1) {
29+
System.out.print(StringUtils.toString(buffer, 0, len));
30+
}
3331
}
34-
}
32+
}
33+
}

‎src/test/java/com/examplehub/basics/io/FileWriterExampleTest.java

Lines changed: 11 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,23 +1,22 @@
11
package com.examplehub.basics.io;
22

3-
import org.junit.jupiter.api.Test;
3+
import static org.junit.jupiter.api.Assertions.*;
44

55
import java.io.FileWriter;
66
import java.io.IOException;
77
import java.io.Writer;
88
import java.nio.file.Files;
99
import java.nio.file.Paths;
10-
11-
import static org.junit.jupiter.api.Assertions.*;
10+
import org.junit.jupiter.api.Test;
1211

1312
class FileWriterExampleTest {
14-
@Test
15-
void testWrite() throws IOException {
16-
String fileName = "example.txt";
17-
try (Writer writer = new FileWriter(fileName)) {
18-
writer.write("hello");
19-
}
20-
assertEquals("hello", FileReaderExample.read(fileName));
21-
Files.deleteIfExists(Paths.get("example.txt"));
13+
@Test
14+
void testWrite() throws IOException {
15+
String fileName = "example.txt";
16+
try (Writer writer = new FileWriter(fileName)) {
17+
writer.write("hello");
2218
}
23-
}
19+
assertEquals("hello", FileReaderExample.read(fileName));
20+
Files.deleteIfExists(Paths.get("example.txt"));
21+
}
22+
}

‎src/test/java/com/examplehub/basics/io/StringReaderExampleTest.java

Lines changed: 11 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -1,21 +1,20 @@
11
package com.examplehub.basics.io;
22

3-
import com.examplehub.utils.StringUtils;
4-
import org.junit.jupiter.api.Test;
3+
import static org.junit.jupiter.api.Assertions.*;
54

5+
import com.examplehub.utils.StringUtils;
66
import java.io.IOException;
77
import java.io.Reader;
88
import java.io.StringReader;
9-
10-
import static org.junit.jupiter.api.Assertions.*;
9+
import org.junit.jupiter.api.Test;
1110

1211
class StringReaderExampleTest {
13-
@Test
14-
void test() throws IOException {
15-
try (Reader reader = new StringReader("hello")) {
16-
char[] chars = new char[1024];
17-
int len = reader.read(chars);
18-
assertEquals("hello", StringUtils.toString(chars, 0, len));
19-
}
12+
@Test
13+
void test() throws IOException {
14+
try (Reader reader = new StringReader("hello")) {
15+
char[] chars = new char[1024];
16+
int len = reader.read(chars);
17+
assertEquals("hello", StringUtils.toString(chars, 0, len));
2018
}
21-
}
19+
}
20+
}

‎src/test/java/com/examplehub/utils/StringUtilsTest.java

Lines changed: 13 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -1,19 +1,19 @@
11
package com.examplehub.utils;
22

3-
import org.junit.jupiter.api.Test;
4-
53
import static org.junit.jupiter.api.Assertions.*;
64

5+
import org.junit.jupiter.api.Test;
6+
77
class StringUtilsTest {
8-
@Test
9-
void testBytesToString() {
10-
byte[] bytes = {1, 2, 3, 4, 5, 0, 0, 0, 0};
11-
assertEquals("234", StringUtils.toString(bytes, 1, 3));
12-
}
8+
@Test
9+
void testBytesToString() {
10+
byte[] bytes = {1, 2, 3, 4, 5, 0, 0, 0, 0};
11+
assertEquals("234", StringUtils.toString(bytes, 1, 3));
12+
}
1313

14-
@Test
15-
void testCharsToString() {
16-
char[] bytes = {'1', '2', '3', '4', '\0', '\0', '\0'};
17-
assertEquals("234", StringUtils.toString(bytes, 1, 3));
18-
}
19-
}
14+
@Test
15+
void testCharsToString() {
16+
char[] bytes = {'1', '2', '3', '4', '\0', '\0', '\0'};
17+
assertEquals("234", StringUtils.toString(bytes, 1, 3));
18+
}
19+
}

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