Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
6. For each of the following examples, what is the output? Example
String s1 = "Welcome to Java";
String s2 = new String("Welcome to Java");
String s3 = "Welcome to Java";
String s4 = new String("Welcome to Java");
System.out.println(s1 == s2);
System.out.println(s1 == s3);
System.out.println(s2 == s4);
String s1 = "welcome to java";
String s2 = s1.replace('a', 'A');
System.out.println(s2);
String s3 = s1.replaceAll("java", "JAVA");
System.out.println(s3);
String s4 = s1.replaceFirst("a", "A");
System.out.println(s4);
Output
Page 2 of 3
Lab 2 - Preparation Questions
ITDR2104 - Programming
String s1 = "welcome to Java";
String s2 = "java";
String s3 = "Java";
String s4 = "Java is fun"; System.out.println(s1.matches("Java.*")); System.out.println(s2.matches("Java.*")); System.out.println(s3.matches("Java.*")); System.out.println(s4.matches("Java.*"));
String s1 = "welcome to Java";
String[] tokens1 = s1.split(" ");
for (String token : tokens1) {
System.out.println("[" + token + "]");
}
String[] tokens2 = s1.split(" ", 0);
for (String token : tokens2) {
System.out.println("[" + token + "]");
}
String[] tokens3 = s1.split(" ", 2);
for (String token : tokens3) {
System.out.println("[" + token + "]");
}
![6. For each of the following examples, what is the output?
Eхample
Output
String sl = "Welcome to Java";
String s2 = new String ("Welcome to Java");
String s3 = "Welcome to Java";
String s4 = new String ("Welcome to Java");
System.out.println (sl == s2);
System.out.println(sl == s3);
System.out.println(s2 == s4);
String sl = "welcome to java";
String s2 = sl.replace ('a', 'A');
System.out.println (s2);
String s3 = sl.replaceAl1("java", "JAVA");
System.out.println (s3);
String s4 = sl.replaceFirst ("a", "A");
System.out.println (s4);
Page 2 of 3
Lab 2 - Preparation Questions
ITDR2104 - Programming
String sl = "welcome to Java";
String s2 = "java";
String s3 - "Java";
String s4 = "Java is fun";
System.out.println (sl.matches ("Java.*"));
System.out.println (s2.matches ("Java.*"));
System.out.println (s3.matches ("Java.*"));
System.out.println(s4.matches ("Java.*"));
String sl = "welcome to Java";
String[] tokensl = s1.split(" ");
for (String tok
: tokens1) (
System.out.println("[" + token + "]");
String[] tokens2 = sl.split(" ", 0);
for (String token : tokens2) {
System.out.println("[" + token + "]");
String[] tokens3 = sl.split(" ", 2);
for (String token : tokens3) {
System.out.println("[" + token + "]");](https://content.bartleby.com/qna-images/question/4774744c-6c2a-44f5-8016-1713d52bbce1/34afaccf-14ac-4c7d-b476-ae5695e1970e/ux4j4x_processed.jpeg)
Transcribed Image Text:6. For each of the following examples, what is the output?
Eхample
Output
String sl = "Welcome to Java";
String s2 = new String ("Welcome to Java");
String s3 = "Welcome to Java";
String s4 = new String ("Welcome to Java");
System.out.println (sl == s2);
System.out.println(sl == s3);
System.out.println(s2 == s4);
String sl = "welcome to java";
String s2 = sl.replace ('a', 'A');
System.out.println (s2);
String s3 = sl.replaceAl1("java", "JAVA");
System.out.println (s3);
String s4 = sl.replaceFirst ("a", "A");
System.out.println (s4);
Page 2 of 3
Lab 2 - Preparation Questions
ITDR2104 - Programming
String sl = "welcome to Java";
String s2 = "java";
String s3 - "Java";
String s4 = "Java is fun";
System.out.println (sl.matches ("Java.*"));
System.out.println (s2.matches ("Java.*"));
System.out.println (s3.matches ("Java.*"));
System.out.println(s4.matches ("Java.*"));
String sl = "welcome to Java";
String[] tokensl = s1.split(" ");
for (String tok
: tokens1) (
System.out.println("[" + token + "]");
String[] tokens2 = sl.split(" ", 0);
for (String token : tokens2) {
System.out.println("[" + token + "]");
String[] tokens3 = sl.split(" ", 2);
for (String token : tokens3) {
System.out.println("[" + token + "]");
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