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JP Morgan Interview Question for Java Developers


Country: India
Interview Type: Written Test
More Questions from This Interview



Comment hidden because of low score. Click to expand.
1
of 1 vote

public class ClassA {

    public static void main(String[] args) {
        //input
        char[] str = "012345678".toCharArray();

        //reverse 
        for (int i = 0; i < str.length / 2; i++) {
            char a = str[i];
            str[i] = str[str.length - i - 1];
            str[str.length - i - 1] = a;
        }

        //output
        for (char c : str) {
            System.out.print(c);
        }

- mger1979 May 16, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 2 vote

Well there are many implementations possible, but the coolest would be -

StringBuilder sb = new StringBuilder("word");
System.out.println(sb.reverse().toString());

- Flash May 14, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class code
{
String s;
public void revrese(String a)
{
s=a;
//char c= (Character) null;
int l=s.length();

for(int i=l-1;i>=0;i--)
{
char ch=s.charAt(i);
System.out.print(ch );
}
}
public static void main(String args[])
{
code c=new code();
c.revrese("visahl kumar");
}
}

- vishaldets May 14, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

To swap it in place:

public static String reverse(String s) {
	if (s == null) {
		return null;
	}

	final StringBuilder mutableString = new StringBuilder(s);

	int startIndex = 0;
	int endIndex = s.length();
	char c;
	while (startIndex < endIndex) {
		// Swap chars
		c = mutableString.charAt(endIndex);
		mutableString.setCharAt(endIndex, mutableString.charAt(startIndex));
		mutableString.setCharAt(startIndex, c);

		startIndex++;
		endIndex--;
	}

	return mutableString.toString();
}

- feistc May 14, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class TestAnything {


public static void main(String[] args) {

System.out.println(reverseString("Aything"));
}

public static String reverseString(String s){

String rs="";
if(s.length()==1){
return s;
}
String s1=s.substring(s.length()-1);
String s2=s.substring(0, s.length()-1);
return rs=s1+reverseString(s2);
}
}

- Rahul Lambat June 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class TestAnything {


public static void main(String[] args) {

System.out.println(reverseString("Aything"));
}

public static String reverseString(String s){

String rs="";
if(s.length()==1){
return s;
}
String s1=s.substring(s.length()-1);
String s2=s.substring(0, s.length()-1);
return rs=s1+reverseString(s2);
}
}

- Rahul Lambat June 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class TestAnything {public static void main(String[] args) {System.out.println(reverseString("Aything"));}
public static String reverseString(String s){String rs="";
if(s.length()==1){return s;}
String s1=s.substring(s.length()-1);
String s2=s.substring(0, s.length()-1);
return rs=s1+reverseString(s2);
}
}

- Rahul Lambat June 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class TestAnything {public static void main(String[] args) {System.out.println(reverseString("Aything"));}
public static String reverseString(String s){String rs=""; if(s.length()==1){return s;}
String s1=s.substring(s.length()-1);
String s2=s.substring(0, s.length()-1);
return rs=s1+reverseString(s2);
}
}

- Rahul Lambat June 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

test

- Rahul June 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class TestAnything {public static void main(String[] args) {System.out.println(reverseString("Aything"));}
public static String reverseString(String s){String rs="";
if(s.length()==1){return s;
}
String s1=s.substring(s.length()-1);
String s2=s.substring(0, s.length()-1);
return rs=s1+reverseString(s2);
}
}

- rahul.lambat June 10, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {


public static void main(String[] args) {


String str = "0123456789";
char arrayChar[] = str.toCharArray();
char reverseArray[] = new char[str.length()];


for(int i=str.length()-1,j=0;i>=0;i--,j++){
reverseArray[j]=arrayChar[i];

}

System.out.println(" reverse String "+new String(reverseArray));


}

}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
public static void main(String[] args) {
String str = "0123456789";
char arrayChar[] = str.toCharArray();
char reverseArray[] = new char[str.length()];
for(int i=str.length()-1,j=0;i>=0;i--,j++){
reverseArray[j]=arrayChar[i];
}
System.out.println(" reverse String "+new String(reverseArray));
}
}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
public static void main(String[] args) {
String str = "0123456789";
char arrayChar[] = str.toCharArray();
char reverseArray[] = new char[str.length()];
for(int i=str.length()-1,j=0;i>=0;i--,j++){
reverseArray[j]=arrayChar[i];
}
System.out.println(" reverse String "+new String(reverseArray));
}
}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {public static void main(String[] args){
String str = "0123456789";char arrayChar[] = str.toCharArray();char reverseArray[] = new char[str.length()];
for(int i=str.length()-1,j=0;i>=0;i--,j++){reverseArray[j]=arrayChar[i];}
System.out.println(" reverse String "+new String(reverseArray));}}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
public static void main(String[] args) {

String str = "0123456789";

char arrayChar[] = str.toCharArray();

char reverseArray[] = new char[str.length()];

for(int i=str.length()-1,j=0;i>=0;i--,j++) {

reverseArray[j]=arrayChar[i];

}

System.out.println(" reverse String "+new String(reverseArray));

}
}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
public static void main(String[] args) {

String str = "0123456789";

char arrayChar[] = str.toCharArray();

char reverseArray[] = new char[str.length()];

for(int i=str.length()-1,j=0;i>=0;i--,j++) {

reverseArray[j]=arrayChar[i];

}

System.out.println(" reverse String "+new String(reverseArray));

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

String str = "0123456789";

char arrayChar[] = str.toCharArray();

char reverseArray[] = new char[str.length()];

for(int i=str.length()-1,j=0;i>=0;i--,j++) {

reverseArray[j]=arrayChar[i];

}

System.out.println(" reverse String "+new String(reverseArray));

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
	public static void main(String[] args) {
		
		String str = "0123456789";
		
		char arrayChar[] = str.toCharArray();
		
		char reverseArray[] = new char[str.length()];
		
		for(int i=str.length()-1,j=0;i>=0;i--,j++) {
			
			reverseArray[j]=arrayChar[i];
			
			}
		
		System.out.println("  reverse String "+new String(reverseArray));
		
		} 
}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
	public static void main(String[] args) {
		
		String str = "0123456789";
		
		char arrayChar[] = str.toCharArray();
		
		char reverseArray[] = new char[str.length()];
		
		for(int i=str.length()-1,j=0;i>=0;i--,j++) {
			
			reverseArray[j]=arrayChar[i];
			
			}
		
		System.out.println("  reverse String "+new String(reverseArray));
		
		} 
}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public static void main(String[] args) {

String str = "0123456789";

char arrayChar[] = str.toCharArray();

char reverseArray[] = new char[str.length()];

for(int i=str.length()-1,j=0;i>=0;i--,j++) {

reverseArray[j]=arrayChar[i];

}

System.out.println(" reverse String "+new String(reverseArray));

}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
	public static void main(String[] args) {
		
		String str = "0123456789";
		
		char arrayChar[] = str.toCharArray();
		
		char reverseArray[] = new char[str.length()];
		
		for(int i=str.length()-1,j=0;i>=0;i--,j++) {
			
			reverseArray[j]=arrayChar[i];
			
			}
		
		System.out.println("  reverse String "+new String(reverseArray));
		
		} 
}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

public class ReverseString {
	public static void main(String[] args) {
		
		String str = "0123456789";
		
		char arrayChar[] = str.toCharArray();
		
		char reverseArray[] = new char[str.length()];
		
		for(int i=str.length()-1,j=0;i>=0;i--,j++) {
			
			reverseArray[j]=arrayChar[i];
			
			}
		
		System.out.println("  reverse String "+new String(reverseArray));
		
		}

}

- venkatacharan volleru June 20, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

String result = null;
String str = "apple";
for (int i = (str.length - 1); i >= 0; i--) {
restult += str[i];
}
System.out.print(result);

- Anonymous March 30, 2018 | Flag Reply
Comment hidden because of low score. Click to expand.
0
of 0 vote

String result = null;
String str = "apple";
for (int i = (str.length - 1); i > 0; i--) {
  restult += str[i];
}
System.out.print(result);

- Anonymous March 30, 2018 | Flag Reply


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