Oracle exam 1Z0-803 study guide

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1.Given the code fragment:
String name = “Spot”;
int age = 4;
String str =”My dog ” + name + ” is ” + age;
StringBuilder sb = new StringBuilder();
Using StringBuilder, which code fragment is the best potion to build and print the following string my dog Spot is 4
A. sb.append(“My dog ” + name + ” is ” + age); System.out.println(sb);
B. sb.insert(“My dog “).append( name + ” is ” + age); System.out.println(sb);
C. sb.insert(“My dog “).insert( name ).insert(” is ” ).insert(age); System.out.println(sb);
D. sb.append(“My dog “).append( name ).append(” is ” ).append(age); System.out.println(sb);
Answer: A,D

2.boolean log3 = ( 5.0 != 6.0) && ( 4 != 5);
boolean log4 = (4 != 4) || (4 == 4);
System.out.println(“log3:”+ log3 + \nlog4? + log4);
What is the result?
A. log3:false log4:true
B. log3:true log4:true
C. log3:true log4:false
D. log3:false log4:false
Answer: B

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Oracle Java SE 7 Programmer I 1Z0-803
Exam Number/Code : 1Z0-803
Exam Name : Java SE 7 Programmer I
One year free update
Once failed,100% refund
Questions and Answers : 97Q&As
Update Time : 2014-4-20

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