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Create SortTest.java

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	`1`	`+//version 11.1`
	`2`	`+`
	`3`	`+//use of Comparable Interface`
	`4`	`+`
	`5`	`+import java.util.*;`
	`6`	`+class Student implements Comparable`
	`7`	`+{`
	`8`	`+ int rollno,marks;`
	`9`	`+ String name;`
	`10`	`+ Student(String name ,int rollno , int marks)`
	`11`	`+ {`
	`12`	`+ this.name=name;`
	`13`	`+ this.rollno=rollno;`
	`14`	`+ this.marks=marks;`
	`15`	`+ }`
	`16`	`+ public String toString()`
	`17`	`+ {`
	`18`	`+ return(name+" "+rollno+" "+marks);`
	`19`	`+ }`
	`20`	`+ public int compareTo(Object ob)`
	`21`	`+ {`
	`22`	`+ Student st1=(Student)ob;`
	`23`	`+ return(rollno - st1.rollno);`
	`24`	`+ }`
	`25`	`+}`
	`26`	`+class SortTest`
	`27`	`+{`
	`28`	`+ public static void main(String s[])`
	`29`	`+ {`
	`30`	`+ ArrayList al=new ArrayList();`
	`31`	`+ al.add(new Student("abc",103,86));`
	`32`	`+ al.add(new Student("xyz",101,45));`
	`33`	`+ al.add(new Student("abc",104,95));`
	`34`	`+ al.add(new Student("hij",102,75));`
	`35`	`+`
	`36`	`+ Collections.sort(al);`
	`37`	`+`
	`38`	`+ List l=Collections.synchronizedList(al);`
	`39`	`+`
	`40`	`+ Iterator itr=al.iterator();`
	`41`	`+ while(itr.hasNext())`
	`42`	`+ {`
	`43`	`+ System.out.println(itr.next()); }`
	`44`	`+ }`
	`45`	`+}`
	`46`	`+`

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