/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone {
 
    static class S {
		int val;
	}
 
	public static void main (String[] args) throws Exception {
		S[] s = new S[4];
		for ( int i = 0; i < 4; ++i ) s[i] = new S();
		s[0].val = 10;
		s[1].val = 20;
		s[2].val = 30;
		s[3].val = 40;
		for ( int i = 0; i < 4; ++i ) System.out.printf( "s[%d]=%d\n", i, s[i].val );
 
		System.out.println();
		S ns = s[1];
		s[1].val = 100;
		for ( int i = 0; i < 4; ++i ) System.out.printf( "s[%d]=%d\n", i, s[i].val );
	}
}

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